# How do you simplify 3a(2a + 7) + 5(5a + 2)?

Apr 5, 2016

$6 {a}^{2} + 46 a + 10$
$6 {a}^{2} + 21 a + 25 a + 10$
$6 {a}^{2} + 46 a + 10$