Mathematics, 10.07.2019 02:30 lailabirdiemae
Q=3x2+5x-2 r = 2 – x2 s = 2x + 5 find q – [r + s] show all of the steps.
Answers: 1
![Q=3x^2+5x-2\\R=2-x^2\\S=2x+5\\\\Q-[R+S]=(3x^2+5x-2)-[(2-x^2)+(2x+5)]\\\\=(3x^2+5x-2)-(2-x^2+2x+5)\\\\=(3x^2+5x-2)-[-x^2+2x+(2+5)]\\\\=(3x^2+5x-2)-(-x^2+2x+7)\\\\=3x^2+5x-2-(-x^2)-2x-7\\\\=3x^2+5x-2+x^2-2x-7\\\\=(3x^2+x^2)+(5x-2x)+(-2-7)\\\\=\boxed{4x^2+3x-9}](/tpl/images/0071/6423/f605e.png)
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Q=3x2+5x-2 r = 2 – x2 s = 2x + 5 find q – [r + s] show all of the steps....
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