Let f(x) = -2x - 7 and g(x) = -4x + 6. find ().

78

Step-by-step explanation:

Multiply f(x) and g(x) then evaluate for x = - 5

f(x) × g(x)

= (- 2x - 7)(- 4x + 6) ← substitute x = - 5 into the expression

= (10 - 7)(20 + 6)

= 3 × 26

= 78

For this case we have the following functions:

We must find By definition we have to:

So:

We apply distributive property keeping in mind that:

We evaluate in :

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