How do you combine $(3x^2 + 4y) - (2x^2 + y)$ ?

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Answer 1 · 2015-07-11T16:43:56

$=color(blue)(x^2)+color(green)(3y)$

$3x^2+4y−2x^2-y$

Grouping like terms
$=color(blue)((3x^2- 2x^2)+color(green)((4y-y)$

$=color(blue)(x^2)+color(green)(3y)$

How do you combine (3x^2 + 4y) - (2x^2 + y)(3x^2 + 4y) - (2x^2 + y)?