- #1
ihopeican
- 27
- 0
hi there,
i just forgot how to solve quadratics and was wondering if anyone could help me on a question it is quite easy.
(x+3)(x-2)^2= 72
(x-2)^2
=x^2-4x+4
(x+3)(x^2-4x+4)
x^3-4x^2+4x+3x^2-12x+12
=x^3-x^2-8x+12= 72
im not quite sure what i should do next if i haven't made any mistakes so far.
thankyou,
i just forgot how to solve quadratics and was wondering if anyone could help me on a question it is quite easy.
(x+3)(x-2)^2= 72
(x-2)^2
=x^2-4x+4
(x+3)(x^2-4x+4)
x^3-4x^2+4x+3x^2-12x+12
=x^3-x^2-8x+12= 72
im not quite sure what i should do next if i haven't made any mistakes so far.
thankyou,