AIR MATH

Math Question

Which expression is equivalent to \( \left(10+7 r-r^{2}\right)+\left(-6 r^{2}-18+5 r\right) ? \) F \( \quad-7 r^{2}+2 r+8 \) G \( 7 r^{2}+12 r+8 \) H \( -7 r^{2}+12 r-8 \) \( 3 r^{2}+2 r-8 \)

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