Let f(x)=x2+7x+12 and g(x)=x2−9. What is (fg)(x)?

1) x+3x−4 where x≠3,4

2) x−4x+3 where x≠−3,4

3) x−4x+3 where x≠−3,3

4) x+4x−3 where x≠−3,3

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).

135

step-by-step explanation:

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