s104012 s104012

06-07-2016
Mathematics

contestada

Find the sum of 2x 2 + 3x - 4, 8 - 3x, and -5x 2 + 2. -3x2 - 2 -7x2 - 2 -3x2 + 6 -7x2 - 6x - 2

Respuesta :

06-07-2016

2x 2+3x -4, 8-3x, -5x 2 + 2
Im guessing that 2x(2)?
(4x+3x-4) + (8-3x) + (-10x+2)
7x-4+8-3x-10x+2
Add all x's
14x
Add all the integers.
6
So, 14x + 6.

What is the second line?
-3x(2)-2-7x(2)-2-3x(2)+6-7x(2)-6x-2
So... -6x-2-14x-2-6x-2-14x-6x-2
-6 is the integer.
-46x is the variables.
-46x-6

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