alleryStart learning →The expression a^3 + b^3 factorises as which product?
A(a+b)(a^2+ab+b^2)
B(a+b)(a^2-ab+b^2)
C(a-b)(a^2-ab+b^2)
D(a-b)(a^2+ab+b^2)
Answer & Solution
Correct answer: B. (a+b)(a^2-ab+b^2)
The sum of two cubes has the factor a+b and the quadratic a^2 - ab + b^2.
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