How do you combine like terms in $(6x ^ { 2} + x + 7) - ( 3x ^ { 2} - 5)$ ?

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Answer 1 · 2017-06-30T03:14:38

your answer is $3x^2+x+12$

First distribute the - sign

$(6x^2+x+7)−(3x^2−5)$ becomes $(6x^2+x+7)+(-3x^2+5)$

then combine like terms ( $6x^2-3x^2= 3x^2$ etc)

your answer is $3x^2+x+12$

How do you combine like terms in (6x ^ { 2} + x + 7) - ( 3x ^ { 2} - 5)(6x ^ { 2} + x + 7) - ( 3x ^ { 2} - 5)?