Question

Mark (✓) against the correct answer:
10p² + 11p + 3 = ?
(a) (2p + 3)(5p + 1)
(b) (5p + 3)(2p + 1)
(c) (5p − 3)(2p − 1)
(d) none of these

Answer 1

(b) $\left(5p+3\right)\left(2p+1\right)$

$$\begin{gathered} 10p^2+11p+3 \\ =10p^2+5p+6p+3 \\ =5p\left(2p+1\right)+3\left(2p+1\right) \\ =\left(5p+3\right)\left(2p+1\right) \end{gathered}$$