Question

(а-2)³=? (3+b)³=? (c+d)³=? (x-y)³=? (x+1)³=? (4x+5)³=? (4x-5)³=? a³-27=? 8-64a³=? b³+8=? 27+d³=? 8m³+n^9=? x³y³+64=? c^6+125d³=?

Answer 1

(а-2)³= (a-2)*(a²+ab+b²)(3+b)³= 27+27b+9b+b³
(c+d)³= c³+3c²d+3cd²+d³
(x-y)³=x³ - 3x²y+3xy²-y³
(x+1)³=x³+3x²+3x+1
(4x+5)³=64x³+240x²+300x+25
(4x-5)³=64x³-240x²+300x-25
a³-27=a³-2³ = (a-3)*(a²+3a+9)
8-64a³= 2³ - (4a)³ = (2-4a)*(4+8a+16a²)
b³+8= b³+2³ = (b+2)*(b²-2b+4)
27+d³= = 3³+d³ = (3+d)*(9-3d+d²)
8m³+n^9=(2m)³+(n³)³ = (2m+n³)*(4m²-2mn³+n^6)
x³y³+64=(xy)³+4³ = (xy+4)*(x²y²-4xy+16)
c^6+125d³=(c²)³+(5d)³ = (c^4-5c²d+25d²

Answer 2

(а-2)³ = a³ - 6a² + 12a - 8 (3+b)³ = b³ + 9b² + 27b + 27 (c+d)³ = c³ + 3c²d + 3cd² + d³ (x-y)³ = x³ - 3x²y + 3xy² - y³ (x+1)³ = x³ + 3x² + 3x + 1 (4x+5)³ = 64x³ + 240x² + 300x + 125 (4x-5)³ = 64x³ - 240x² + 300x - 125 a³-27 = (a-3)(a²+3a+9) 8-64a³ = 8(1-8a³) b³+8 = (b+2)(b²-2b+4) 27+d³ = (3+d)(9-3d+d²) 8m³+n^9 = (2m+n^3)(4m^2-2mn^3+n^6) x³y³+64 = (xy+4)(x^2y^2-4xy+16) c^6+125d³ = (c^2+5d)(c^4-5c^2d+25d²)