machloemiEllie machloemiEllie

24-11-2016
Mathematics

contestada

Simplify (4x2+ 12x - 9) + (7x2- x + 3)

11x2+ 12x - 6
11x2+ 13x + 6
11x2+ 11x + 6
11x2+ 11x - 6

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HomertheGenius HomertheGenius

26-11-2016

( 4 x² + 12 x - 9 ) + ( 7 x² - x + 3 ) =
= 4 x² + 12 x - 9 + 7 x² - x + 3 =
= 11 x² + 11 x - 6
Answer:
D ) 11 x² + 11 x - 6

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cavapoo cavapoo

16-11-2018

the answer is 11x^2+11x-6

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