Question

Identify the factors of 4x2 + 12x + 9.

(4x - 3)(x - 3)

(4x + 3)(x + 3)

(2x - 3)(2x - 3)

(2x + 3)(2x + 3)

Answer 1

Im not sure which one it is

Answer 2

(4x-3)(x-3)
Foil
4x^2-12x-3x-9= 4x^2-9x-9

Answer 3

is that right?

Answer 4

(4x+3)(x+3)
Foil
4x^2+12x+3x+9= 4x^2+15x+9

Answer 5

(2x-3)(2x-3)
Foil
4x^2-6x-6x-9= 4x^2-12x-9

Answer 6

Meaning d?

Answer 7

the answer is d u are correct

Answer 8

http://www.hackmath.net/en/calculator/quadratic-equation?a=4&b=12&c=9

so D: 4(x+1.5)(x+1.5) = (2x+3)(2x+3)