Math, asked by murarilal1521, 2 months ago

If 5 is a zero of x^3+ kx^2+ 2x+8 find k.​

Answers

Answered by rudra2442004
0

Answer:

if 5 is a zero of polynomial then it should be on putting in them

putting x=5 then

5³+25k +10+8=0

125+10+8+25k =0

-142=25k

k=-142/25

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