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If (x+a) is a factor of the polynomial 2x^2 + 2ax + 5x + 10, find the value of a.

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If (x+a) is a factor of the polynomial 2x2 + 2ax + 5x + 10, find the value of a. 

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Given: (x + a) is a factor of 2x2 + 2ax + 5x + 10

So, we have 

x + a = 0 

⇒ x = –a 

Now, it will satisfy the above polynomial. 

Therefore, we will get

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