Question

What is a²+(3a-b)(3a+b+b²) Simplify it!!​

Answer 1

$\Large {\textsf{\textbf \red{Answér :-}}}$

a² + (3a - b)(3a + b + b²)

• $\left(3a-b\right)\left(3a+b^{2}+b\right)+a^{2}$

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Answer 2

$3ab {}^{2} - b {}^{3} + 10a {}^{2} - b {}^{2}$