Question

Преобразуйте в многочлен
(x--8)(x+5)
(x+6)^2
(3y--2)(3y+2)

Answer 1

(x--8)(x+5) =
= x^2 + 5x - 8x - 40 =
= x^2 - 3x - 40

(x+6)^2 =
= x^2 + 2*x*6 + 6^2 =
= x^2 + 12x + 36

(3y--2)(3y+2) =
= 9y^2 + 6y - 6y - 4 =
= 9y^2 - 4
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