Question

4x^2 - 12x + 9 split the middle term​

Answer 1

4x^2-12x+9

= 4x^2-6x-6x+9 (4*9=36,6+6=12,6*6=36)

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

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

Answer 2

Multiply the two outer coefficients, 4.9=36

Find two numbers,that when multiplied equal 36 and when added equal 12.

6+6=12

6.6=36

Step-by-step:

4x^2 -12x + 9

=4x^2-(6+6)x+9

=4x^2-6x-6x+9

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

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