How do you combine $(17x^2 + 7x - 14) - (-6x^2 - 5x - 18)$ ?

Question

2600 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-06-08T11:25:23

$(17x^2 + 7x - 14) - (-6x^2 - 5x - 18)$

$17x^2 + 7x - 14 + 6x^2 + 5x + 18$

Here, we will first group like terms:
$color(blue)(17x^2 +6x^2) + color(red)(7x+5x) -color(green)(14+18)$

$=color(blue)(23x^2) + color(red)(12x) +color(green)(4)$

How do you combine (17x^2 + 7x - 14) - (-6x^2 - 5x - 18)(17x^2 + 7x - 14) - (-6x^2 - 5x - 18)?