**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*

**Answer:**

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

**Answer:**

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

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