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252r^2-630r+252=0Solve quadratic equation |
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Answer» Answer: 252r²-630r+252=0 252(r²-2.5r+1)=0 r²-2.5r+1=0 r²-2.0r-0.5r+1=0 r(r-2.0)-0.5(r-2.0)=0 (r-2.0)(r-0.5)=0 r=2 r=0.5 |
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