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

Question

Harshit Singh · Answer

Dear Student Say, f(a) = 2a^2+ 2xa + 5a + 10 Since, (a + x) is a factor of 2a^2+ 2xa + 5a + 10, f(-x) = 0 So, f(-x) = 2x^2&ndash; 2x^2&ndash; 5x + 10 = 0 Or, -5x + 10 = 0 Thus, x = 2 Thanks

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

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

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