How do you simplify $4a^2+3a+(a+7)2a$ ?

Question

1601 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-07-05T15:14:43

$=6a^2 +17a$

$4a^2 +3a +color(blue)((a+7)2a$

$=4a^2 +3a +color(blue)(2a^2 +14a$

Grouping like terms:

$=color(green)(4a^2+ 2a^2) + color(green)(3a+14a)$

$=6a^2 +17a$

How do you simplify 4a^2+3a+(a+7)2a4a^2+3a+(a+7)2a?