Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$-10-7+ { -3 }^{ 2 }$$

Answer

-8

Solution


Since the power of 2 is even, the result will be positive.
\[-10-7+{3}^{2}\]
Simplify  \({3}^{2}\)  to  \(9\).
\[-10-7+9\]
Simplify  \(-10-7\)  to  \(-17\).
\[-17+9\]
Simplify.
\[-8\]
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