Question

If -2is a zero ok the polynomial x2-4x+2k then find the value of k

Answer 1

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→If -2is a zero ok the polynomial x²-4x+2k then find the value of k

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⇒Given:

• -2 is a zero of x²-4x+2k

⇒To Find:

• Value of K

If 2 is a zero then it should satisfy:-

p(x) = 0

Where x = -2

⇒$p(-2)=x^2-4x+k=0$

⇒$(-2)^2-4(-2)+k=0$

⇒$4+8+k=0$

⇒$\huge{\pink{\overbrace{\underbrace{k=-12}}}}$

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