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sertanlavr [38]
3 years ago
10

URGENT PLEASE HELP 45 POINTS! Complete this activity. Given: f(x) = x + 2 [f(x)] 2 =

Mathematics
1 answer:
ivanzaharov [21]3 years ago
3 0

We are told that f(x) = x + 2. We want to find (f(x))^{2}.

Squaring f(x) on one side means we square x + 2 on the other.

So,

f(x) = x + 2

(f(x))² = (x + 2)²

= (x + 2)(x + 2)

We can use FOIL to square x + 2. The first terms multiply to x², the outside terms to 2x, the inside terms to 2x and the last terms to 4.

= x² + 2x + 2x + 4

= x² + 4x + 4


So [f(x)]² = x² + 4x + 4

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