Question

Factorise (1)x^3+64 (2)27x^3+125y^3 (3)89^3+27b^3 (4)1-64a^3

Answer 1

Answer:

Step-by-step explanation:

(1) x^3 + 64 = (x+4)(x^2 + 16 - 4x )

(2) 27x^3 + 125y^3 = (3x + 5y)(9x^2 + 25y^2 - 12xy )

(3) 89^3 + 27b^3 = (3b + 89)(9b^2 + 89^2 - 267b)

(4) 1- 64a^3 = (1-4a)(1 + 16a^2 + 4a)