Question

factorise: x^3+9y^3+(x+y)^3

Answer 1

Answer:

STEP

1

:

Equation at the end of step 1

((x3) - 32y3) + (x - y)3

STEP

2

:

2.1 Evaluate : (x-y)3 = x3-3x2y+3xy2-y3

Checking for a perfect cube :

2.2 2x3-3x2y+3xy2-10y3 is not a perfect cube

Answer 2

Answer:

Step-by-step explanation

 ((x3)-(9•(y3)))-3xy•(x-y)

((x3) - 32y3) - 3xy • (x - y)

x3 - 3x2y + 3xy2 - 9y3 (ANS)