- Solve ⇨ (x + 1)(x + 2) • (x + 2)(x - 2)
Multiply x+2 and x+2 to get .
Use binomial theorem to expand .
Apply the distributive property by multiplying each term of x+1 by each term of x²+4x+4.
Combine 4x² and x² to get 5x².
Combine 4x and 4x to get 8x.
Apply the distributive property by multiplying each term of x³+5x²+8x+4 by each term of x-2.
Combine -2x³ and 5x³ to get 3x³.
Combine -10x² and 8x² to get -2x².
Combine -16x and 4x to get -12x.