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If a and b are zeros of x square + 7 x + 7 find the value of a + b minus 2 a b |
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Answer» -21 Step-by-step explanation: if a and B are the zeroes of the quadratic polynomial,then a+b=-7/1=-7 ab=7/1 now , (a+b)-2ab=(-7)-2(7) =-7-14 =-21 |
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