Factories each of the following expression by splitting the middle terms 84_2r_2rsquare
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Answer:
-7,6
Step-by-step explanation:
84-2r-2r^2=0
-2(r^2+r-42)=0
r^2+7r-6r-42=0
r(r+7)-6(r+7)=0
(r+7)(r-6)=0
r=-7,6
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