How do you combine $(6x^2 + x + 4) - (x^2 - x + 9)$ ?

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Answer 1 · 2015-06-03T10:08:32

$(6x^2 + x + 4) - (x^2 - x + 9)$

$6x^2 + x + 4- color(red)(x^2) + color(blue)( x) -color(green)( 9$

We can Group Like Terms to combine the expressions

$(6x^2 - color(red)(x^2)) + (x + color(blue)( x)) +(4-color(green)( 9))$

$= 5x^2 + 2x -5$

How do you combine (6x^2 + x + 4) - (x^2 - x + 9)(6x^2 + x + 4) - (x^2 - x + 9)?