Question

a3 - 9b3 + (a + b)3
Solve this (Factorisation)​

Answer 1

a3 + 3a - 9b3 + 3b

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "b3" was replaced by "b^3". 1 more similar replacement(s).

Step by step solution :

Step 1 :

Equation at the end of step 1 :

((a3)-(9•(b3)))+3•(a+b)

Step 2 :

Equation at the end of step 2 :

((a3) - 32b3) + 3 • (a + b)

Step 3 :

Checking for a perfect cube :

3.1 a3+3a-9b3+3b is not a perfect cube

Final result :

a3 + 3a - 9b3 + 3b

Answer 2

a3 + 3a - 9b3 + 3b

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "b3" was replaced by "b^3". 1 more similar replacement(s).

Step by step solution :

Step 1 :

Equation at the end of step 1 :

((a3)-(9•(b3)))+3•(a+b)

Step 2 :

Equation at the end of step 2 :

((a3) - 32b3) + 3 • (a + b)

Step 3 :

Checking for a perfect cube :

3.1 a3+3a-9b3+3b is not a perfect cube

Final result :

a3 + 3a - 9b3 + 3b

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