a) a(a+3)-2(a+3) = (a-2)(a+3)б) ax-ay+5x-5y = a(x-y) + 5(x-y) = (a+5)(x-y)
-0.1x(2x^2 + 6)(5-4x^2) = 0.1x(2x^2 + 6)(4x^2 - 5) = 0.1x(8x^4 - 10x^2 + 24x^2 - 30) = 0.1x(8x^4 + 14x^2 - 30) = 0.8x^5 + 1.4x^3 - 3x
a) a(a+3)-2(a+3) = (a-2)(a+3)
б) ax-ay+5x-5y = a(x-y) + 5(x-y) = (a+5)(x-y)
-0.1x(2x^2 + 6)(5-4x^2) = 0.1x(2x^2 + 6)(4x^2 - 5) = 0.1x(8x^4 - 10x^2 + 24x^2 - 30) = 0.1x(8x^4 + 14x^2 - 30) = 0.8x^5 + 1.4x^3 - 3x