====== Question 2 & 3, Review Exercise ======
Solutions of Question 2 & 3 of Review Exercise of Unit 05: Polynomials. This is unit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Federal Textbook Board, Islamabad, Pakistan. 

=====Question 2=====
$\left(64 y^{3}-8\right) \div(4 y-2) \quad$ 

** Solution. **

\begin{align*}
\frac{(64 y^{3}-8)}{(4 y-2)}&= \frac{(4y - 2)(16y^{2} + 8y + 4)}{4y - 2}\\
& = 16y^{2} + 8y + 4 .\end{align*}

=====Question 3=====
$\left(125 y^{3}-8\right) \div(5 y-2)$

** Solution. **

\begin{align*}
\frac{(125 y^{3}-8)}{(5 y-2)} &= \frac{(5y - 2)\left(25y^{2} + 10y + 4\right)}{5y - 2} \\
& = 25y^{2} + 10y + 4.
\end{align*}









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