How do you simplify #-3x ( x + 2) ^ { 2} + ( x + 3) ( x - 1) ( x + 1) - ( 2x - 3) ^ { 2}#?

1 Answer
May 6, 2018

The answer
#[-2x^3-13x^2+5x-6]=-[2x^3+13x^2-5x+6]#

Explanation:

show below

#-3x ( x + 2) ^ { 2} + ( x + 3) ( x - 1) ( x + 1) - ( 2x - 3) ^ { 2}#

#-3x(x^2+4x+4)+(x^2-x+3x+3)(x+1)-(4x^2-12x+9)#

#(-3x^3-12x^2-12x)+(x^3-x^2+3x^2+3x+x^2-x+3x+3)-(4x^2-12x+9)#

#[-3x^3-12x^2-12x+x^3-x^2+3x^2+3x+x^2-x+3x+3-4x^2+12x-9]#

#[-2x^3-13x^2+5x-6]=-[2x^3+13x^2-5x+6]#