Question

One zero of the quadratic polynomial x2 – 5x + k is -4, then find the value of k.

Answer 1

Answer:

-36

Step-by-step explanation:

p(x)=x²-5x+k=0

∴p(-4)=(-4)²-5× -4 +k=0

16+20+k=0

∴k=-36

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