Multiply:
(3x-4)²
It would be (3x-4)(3x-4).
Would the answer be 9x²+16?
No, you are missing the middle term
You need 3x(-4) + 3x(-4) = -24x
(3x+4)(3x-4) = 9x^2 -16 This is the case where there wouldn't be a middle term.
(3x-4)²
It would be (3x-4)(3x-4).
Would the answer be 9x²+16?
You need 3x(-4) + 3x(-4) = -24x
(3x+4)(3x-4) = 9x^2 -16 This is the case where there wouldn't be a middle term.