3 years ago

I don’t know how to do this problem in math

Mathematics

1 answer:

Elodia [21]3 years ago

5 0

Answer:

142

Step-by-step explanation:

Basically, in f (x) whatever x is will go in the parenthesis.

So,

$-(-9)^{2}$ $-7(-9)-2$

The two negatives that are next together will turn positive.

$9^{2}$ $+63$ $-2$

When multiplying two negative numbers turn positive.

9 x 9= 81

81+63-2

144-2=142

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