Simplify 9(3s-3t)-2t-10(8t+s)*9(3s-3t)-2t-10(8t+s)

$9 (3 s - 3 t) - 2 t - 10 (8 t + s) \cdot 9 (3 s - 3 t) - 2 t - 10 (8 t + s)$

Simplify each term.

Apply the distributive property.

$9 (3 s) + 9 (- 3 t) - 2 t - 10 (8 t + s) \cdot (9 (3 s - 3 t)) - 2 t - 10 (8 t + s)$

Multiply $3$ by $9$ .

$27 s + 9 (- 3 t) - 2 t - 10 (8 t + s) \cdot (9 (3 s - 3 t)) - 2 t - 10 (8 t + s)$

Multiply $- 3$ by $9$ .

$27 s - 27 t - 2 t - 10 (8 t + s) \cdot (9 (3 s - 3 t)) - 2 t - 10 (8 t + s)$

Apply the distributive property.

$27 s - 27 t - 2 t + (- 10 (8 t) - 10 s) \cdot (9 (3 s - 3 t)) - 2 t - 10 (8 t + s)$

Multiply $8$ by $- 10$ .

$27 s - 27 t - 2 t + (- 80 t - 10 s) \cdot (9 (3 s - 3 t)) - 2 t - 10 (8 t + s)$

Apply the distributive property.

$27 s - 27 t - 2 t + (- 80 t - 10 s) \cdot (9 (3 s) + 9 (- 3 t)) - 2 t - 10 (8 t + s)$

Multiply $3$ by $9$ .

$27 s - 27 t - 2 t + (- 80 t - 10 s) \cdot (27 s + 9 (- 3 t)) - 2 t - 10 (8 t + s)$

Multiply $- 3$ by $9$ .

$27 s - 27 t - 2 t + (- 80 t - 10 s) \cdot (27 s - 27 t) - 2 t - 10 (8 t + s)$

Expand $(- 80 t - 10 s) (27 s - 27 t)$ using the FOIL Method.

Apply the distributive property.

$27 s - 27 t - 2 t - 80 t (27 s - 27 t) - 10 s (27 s - 27 t) - 2 t - 10 (8 t + s)$

Apply the distributive property.

$27 s - 27 t - 2 t - 80 t (27 s) - 80 t (- 27 t) - 10 s (27 s - 27 t) - 2 t - 10 (8 t + s)$

Apply the distributive property.

$27 s - 27 t - 2 t - 80 t (27 s) - 80 t (- 27 t) - 10 s (27 s) - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Simplify and combine like terms.

Simplify each term.

Rewrite using the commutative property of multiplication.

$27 s - 27 t - 2 t - 80 \cdot 27 t s - 80 t (- 27 t) - 10 s (27 s) - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Multiply $- 80$ by $27$ .

$27 s - 27 t - 2 t - 2160 t s - 80 t (- 27 t) - 10 s (27 s) - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Rewrite using the commutative property of multiplication.

$27 s - 27 t - 2 t - 2160 t s - 80 \cdot - 27 t \cdot t - 10 s (27 s) - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Multiply $t$ by $t$ by adding the exponents.

Move $t$ .

$27 s - 27 t - 2 t - 2160 t s - 80 \cdot - 27 (t \cdot t) - 10 s (27 s) - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Multiply $t$ by $t$ .

$27 s - 27 t - 2 t - 2160 t s - 80 \cdot - 27 t^{2} - 10 s (27 s) - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Multiply $- 80$ by $- 27$ .

$27 s - 27 t - 2 t - 2160 t s + 2160 t^{2} - 10 s (27 s) - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Rewrite using the commutative property of multiplication.

$27 s - 27 t - 2 t - 2160 t s + 2160 t^{2} - 10 \cdot 27 s \cdot s - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Multiply $s$ by $s$ by adding the exponents.

Move $s$ .

$27 s - 27 t - 2 t - 2160 t s + 2160 t^{2} - 10 \cdot 27 (s \cdot s) - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Multiply $s$ by $s$ .

$27 s - 27 t - 2 t - 2160 t s + 2160 t^{2} - 10 \cdot 27 s^{2} - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Multiply $- 10$ by $27$ .

$27 s - 27 t - 2 t - 2160 t s + 2160 t^{2} - 270 s^{2} - 10 s (- 27 t) - 2 t - 10 (8 t + s)$

Rewrite using the commutative property of multiplication.

$27 s - 27 t - 2 t - 2160 t s + 2160 t^{2} - 270 s^{2} - 10 \cdot - 27 s t - 2 t - 10 (8 t + s)$

Multiply $- 10$ by $- 27$ .

$27 s - 27 t - 2 t - 2160 t s + 2160 t^{2} - 270 s^{2} + 270 s t - 2 t - 10 (8 t + s)$

Add $- 2160 t s$ and $270 s t$ .

Move $t$ .

$27 s - 27 t - 2 t + 2160 t^{2} - 270 s^{2} - 2160 s t + 270 s t - 2 t - 10 (8 t + s)$

Add $- 2160 s t$ and $270 s t$ .

$27 s - 27 t - 2 t + 2160 t^{2} - 270 s^{2} - 1890 s t - 2 t - 10 (8 t + s)$

Apply the distributive property.

$27 s - 27 t - 2 t + 2160 t^{2} - 270 s^{2} - 1890 s t - 2 t - 10 (8 t) - 10 s$

Multiply $8$ by $- 10$ .

$27 s - 27 t - 2 t + 2160 t^{2} - 270 s^{2} - 1890 s t - 2 t - 80 t - 10 s$

Simplify by adding terms.

Subtract $10 s$ from $27 s$ .

$17 s - 27 t - 2 t + 2160 t^{2} - 270 s^{2} - 1890 s t - 2 t - 80 t$

Subtract $2 t$ from $- 27 t$ .

$17 s - 29 t + 2160 t^{2} - 270 s^{2} - 1890 s t - 2 t - 80 t$

Subtract $2 t$ from $- 29 t$ .

$17 s + 2160 t^{2} - 270 s^{2} - 1890 s t - 31 t - 80 t$

Subtract $80 t$ from $- 31 t$ .

$17 s + 2160 t^{2} - 270 s^{2} - 1890 s t - 111 t$

Reorder.

Move $17 s$ .

$2160 t^{2} - 270 s^{2} - 1890 s t + 17 s - 111 t$

Move $2160 t^{2}$ .

$- 270 s^{2} - 1890 s t + 2160 t^{2} + 17 s - 111 t$

Simplify 9(3s-3t)-2t-10(8t+s)*9(3s-3t)-2t-10(8t+s)

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