Simplify square root of 15+8 square root of 15-12 square root of 15

$\sqrt{15} + 8 \sqrt{15} - 12 \sqrt{15}$

Step 1

Add $\sqrt{15}$ and $8 \sqrt{15}$ .

$9 \sqrt{15} - 12 \sqrt{15}$

Step 2

Subtract $12 \sqrt{15}$ from $9 \sqrt{15}$ .

$- 3 \sqrt{15}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$- 3 \sqrt{15}$

Decimal Form:

$- 11.61895003 \dots$