find the sum of the following question
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Answered by
0
Step-by-step explanation:
=(5x^2+7x+3)+(12x^2-3x+8)+(6x^2-4x-9)
=5x^2+7x+3+12x^2-3x+8+6x^2-4x-9
=5x^2+12x^2+6x^2+7x-3x-4x+3+8-9
=23x^2+2
Answered by
0
-13x2 + 14x + 4
Step-by-step explanation:
(5x2+10x-5)+ (12x2-3x+8)= -7x2+10x-5
(-7x2+10x-5)+ (6x2-4x-9)= - 13x2+14x+4
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