Question

(2x+2).(2x+2)-(3x-1).(3x+1)

Answer 1

\(\left(2x+2\right)\left(2x+2\right)-\left(3x-1\right)\left(3x+1\right)=\left(2x+2\right)^2-\left(9x^2-1\right)=4x^2+8x+4-9x^2+1=-5x^2+8x+5\)

Answer 2

(2x+2).(2x+2)-(3x-1).(3x+1)
=(2x+2)²- 9x²-1
=4x²+8x+4-9x²-1
=-5x²+8x+3

Answer 3

 

2x+2)(2x+2)−(3x−1)(3x+1)=(2x+2)2−(9x2−1)=4x2+8x+4−9x2+1=−5x2+8x+5

Answer 4

\(\left(2x+2\right)\left(2x+2\right)-\left(3x-1\right)\left(3x+1\right)\)

\(=4x^2+8x+4-9x^2+1\)

\(=-5x^2+8x+5\)