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(8r^2-7r-9) +(-r^2+r)=(8r 2 −7r−9)+(−r 2 +r)
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(8r^2-7r-9) +(-r^2+r)=(8r 2 −7r−9)+(−r 2 +r)

User William Jackson
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6 votes

Im sorry this one really got me its either r = 2 or r = 0

!!!!

User Jendy
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