Question

x+a is a factor of 2x^2+2ax+5ax+10,then find a​

Answer 1

Your answer mate

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x + a is a factor of 2x square cm + 2ax +5x + 10

therefore f (-a) = 0 ;

substituting values

2 (-a)square cm + 2 (a) (-a) + 5 (-a) +10=0

-5a +10=0

therefore a = 2 (ans)

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