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(X+a) is a factor of the 2x2+2ax+5x+10Find out the value of a |
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Answer» How X+a is a factor of 2x²+2ax+5x+10therefore f(-a)=0;substituting values,2(-a)²+2(a)(-a)+5(-a)+10=02a²-2a²-5a+10=0-5a+10=0therefore a=2 |
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