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Exercise

$6^2+12-1\sqrt{15-x}+\left(-\sqrt{15-x}\right)^2$

Step-by-step Solution

1

Calculate the power $6^2$

$36+12-\sqrt{15-x}+\left(-\sqrt{15-x}\right)^2$
2

Add the values $36$ and $12$

$48-\sqrt{15-x}+\left(-\sqrt{15-x}\right)^2$
3

Simplify $\left(-\sqrt{15-x}\right)^2$

$48-\sqrt{15-x}+\left(\sqrt{15-x}\right)^2$
4

Cancel exponents $\frac{1}{2}$ and $2$

$48-\sqrt{15-x}+15-x$
5

Add the values $48$ and $15$

$63-\sqrt{15-x}-x$

Final answer to the exercise

$63-\sqrt{15-x}-x$

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