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Question 1. Asked on :07 October 2019:11:36:04 AM

#### Find the value of “x” in the equation 2a2 + 2xa + 5x + 10 if (a + x) is one of its factors.

-Added by Himanshi Verma Mathematics » POLYNOMIALS

Himanshi Verma

Let f(a) = 2a2 + 2xa + 5x + 10

As (a + x) is a factor of 2a2 + 2xa + 5x + 10, f(-x) = 0

So, f(-x) = 2x2 – 2x2 – 5x + 10 = 0

Or, -5x + 10 = 0

Thus, x = 2

-Answered by Himanshi Verma On 07 October 2019:11:37:10 AM(12565Average Rating Based on rating)

Master Purushottam

Let f(a) = 2a2 + 2xa + 5x + 10

As (a + x) is a factor of 2a2 + 2xa + 5x + 10, f(-x) = 0

So, f(-x) = 2x2 – 2x2 – 5x + 10 = 0

Or, -5x + 10 = 0

Thus, x = 2

-Answered by Master Purushottam On 07 October 2019:09:09:32 PM(12823Average Rating Based on rating)

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