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Dear experts please solve and answer step by step. plaese help to me Dear experts please solve and answer step by step. plaese help to me
Let r and 4r be the roots of equation ax2+bx+c = 0.then r+4r = 5r = -b/a and r*4r = 4r2 = c/a 4*(-b/5a)2 = c/a 4b2 = 25ac is the required condition
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