ElizabetGutierez ElizabetGutierez

09-06-2015
Mathematics

contestada

What is the result when 6x2 - 13x + 12 is subtracted from
-3x2 + 6x + 7?
(1) 3x2 - 7x + 19 (3) 9x2 - 7x + 19
(2) 9x2 - 19x + 5 (4) -9x2 + 19x - 5

Respuesta :

lulu1991 lulu1991

20-06-2015

The answer is (2) 9x2-19x+5. You need first put them together linking by minus sign. It is 6x2-13x+12-(-3x2+6x+7). Move the brackets away: 6x2-13x+12+3x2-6x-7. Put the like terms together and you can get the answer.

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