Question

If -2 is the zero of 4x3 + Px2 - 4 then find the value of P

Answer 1

Answer:

let another zeros ne x

product of zeros=c/a

-2 × x let=-4/4

-2x=-1

x=-1/-2

x=1/2

sum of zeros=-b/a

2+1/2=P/4

5/2=P/4

P=5/2 ×4

P=5×2

P=10

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