Question

(3x-5)(3x-5)-(2x-3)(4x+5)

Answer 1

(3x−5)(3x−5)−(2x−3)(4x+5)

Distribute:

=(3x)(3x)+(3x)(−5)+(−5)(3x)+(−5)(−5)+−8x2+2x+15

=9x2+−15x+−15x+25+−8x2+2x+15

Combine Like Terms:

=9x2+−15x+−15x+25+−8x2+2x+15

=(9x2+−8x2)+(−15x+−15x+2x)+(25+15)

=x2+−28x+40

Answer:

=x2−28x+40

Answer 2

X2-28+40

Explanation: