Question

what is the factor of 3x^2-9x-12=0

Answer 1

Answer:

$3[x(x-3)-4]$

Step-by-step explanation:

$3x^{2} -9x-12\\\\(3*x*x)-(3*3*x)-(3*2*2)\\\\3[x(x-3)-4]$

Answer 2

Step-by-step explanation:

3x^2 - 9x-12=0

3x^2 - 12x+3x-12

3x(x-4)+3(x-4)

(3x+3)(x-4)

ForX:-

3x+3=0 x-4=0

3x=-3 x=4

x=-1