How do you simplify $3 r^{2} + - 8 + - 10 r^{2} + - 4 r - r$ $3r^2+ -8+ -10r^2+ -4r-r$ ?

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Answer 1 · 2016-11-11T13:01:12

$- 7 r^{2} - 5 r - 8$ $-7r^2 - 5r -8$

Step 1 is to group like terms and then combine like terms:

$3 r^{2} + - 8 + - 10 r^{2} + - 4 r - r \Rightarrow$ $3r^2 + -8 + -10r^2 + -4r - r =>$

$(3 r^{2} + - 10 r^{2}) + (- 4 r - r) + - 8 \Rightarrow$ $(3r^2 + -10r^2) + (-4r - r) + -8 =>$

$(3 + - 10) r^{2} + (- 4 - 1) r + - 8$ $(3 + -10)r^2 + (-4 - 1)r + -8$

$- 7 r^{2} + - 5 r + - 8 \Rightarrow$ $-7r^2 + -5r + -8 =>$

$- 7 r^{2} - 5 r - 8$ $-7r^2 - 5r -8$

How do you simplify 3r^2+ -8+ -10r^2+ -4r-r3r2+−8+−10r2+−4r−r3r^2+ -8+ -10r^2+ -4r-r?