How do you combine $(4x^2 + 8x) - (2x^2 + 2)$ ?

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Answer 1 · 2015-07-15T08:00:28

$=color(blue)(2x^2 +8x-2$

$(4x^2+8x)−(2x^2+2)$

$=4x^2+8x−2x^2-2$

$=color(blue)((4x^2−2x^2)) +8x-2$

$=color(blue)(2x^2 +8x-2$

How do you combine (4x^2 + 8x) - (2x^2 + 2)(4x^2 + 8x) - (2x^2 + 2)?