How do you combine $(6x ^2-19x+5)-(19x^2-4x+9)$ ?

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Answer 1 · 2015-07-23T12:00:41

$=-13x^2 -15x-4$

$6x^2−19x+5−19x^2+ 4x-9$

Grouping like terms

$=(6x^2−19x^2) + (4x−19x) +(5-9)$

$=-13x^2 -15x-4$

How do you combine (6x ^2-19x+5)-(19x^2-4x+9)(6x ^2-19x+5)-(19x^2-4x+9)?