Inactive Tutor answered • 03/26/14
Tutor
New to Wyzant
( 2X + 3 ) ^2 - ( 1 - X ) ( 3X +2 ) ^2 = 0
4X^2 + 12X + 9 - ( 1 -X) ( 9X^2 + 12X + 4 ) =0
4 X^2 + 12 X + 9 - ( 9X^2 + 12X +4 - 9X^3 -12X^2 - 4X)
4X^2 + 12X + 9 - 9X^2 -12X -4 + 9X^3 + 12 X^2 +4x
9 X^3 + 7 X^2 +4 X +5
Inactive Tutor
As you multiply its sometimes helpful to put all the different powers of X in columns so you can just add or subtract the coefficients.05/03/19