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Preeti Tripathi

Class 9th

Maths

2 years ago

Find the value of m, if x + 4 is a factor of the polynomial x2 + 3x + m.

1 Answer

Abhishek Mishra

2 years ago

Solution: Let p(x) = x2 + 3x + m Since (x + 4) or (x – (-4)} is a factor of p(x). ∴ p(-4) = 0 ⇒ (-4)2 + 3(-4) + m = 0 ⇒ 16 – 12 + m = 0 ⇒ m = -4

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