Evaluate 23^2-7^1+33^0

$2 \cdot 3^{2} - 7^{1} + 3 \cdot 3^{0}$

Simplify each term.

Raise $3$ to the power of $2$ .

$2 \cdot 9 - 7^{1} + 3 \cdot 3^{0}$

Multiply $2$ by $9$ .

$18 - 7^{1} + 3 \cdot 3^{0}$

Evaluate the exponent.

$18 - 1 \cdot 7 + 3 \cdot 3^{0}$

Multiply $- 1$ by $7$ .

$18 - 7 + 3 \cdot 3^{0}$

Multiply $3$ by $3^{0}$ by adding the exponents.

Multiply $3$ by $3^{0}$ .

Raise $3$ to the power of $1$ .

$18 - 7 + 3^{1} \cdot 3^{0}$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$18 - 7 + 3^{1 + 0}$

Add $1$ and $0$ .

$18 - 7 + 3^{1}$

Simplify $3^{1}$ .

$18 - 7 + 3$

Simplify by adding and subtracting.

Subtract $7$ from $18$ .

$11 + 3$

Add $11$ and $3$ .

$14$

Evaluate 2*3^2-7^1+3*3^0