How do you simplify $(14x^2 + 13x + 12) - (7x^2 + 20x + 4)$ ?

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Answer 1 · 2015-06-05T23:34:44

$(14x^2+13x+12)-(7x^2+20x+4)$

$14x^2+13x+12-7x^2-20x-4$

$=(14x^2-7x^2)+(13x-20x)+(12-4)$

$=(14-7)x^2+(13-20)x+(12-4)$

$=7x^2-7x+8$

How do you simplify (14x^2 + 13x + 12) - (7x^2 + 20x + 4) (14x^2 + 13x + 12) - (7x^2 + 20x + 4)?