Question

If the sum of zeroes of quadratic polynomial p(x)=px^2-4x+2k is same as their product, find the value of k.

Answer 1

Answer:

k= -2

Step-by-step explanation:

since alpha+ beta is (-b/a) and alpha*beta is (c/a), therefore

-4/p= 2k/p

-4= 2k

k = -4 / 2

k= -2

Answer 2

sum of zero

a+b = -b/a

a+b = -4 /1

= -4

product of zero

a.b =c/a

-4= 2k/ 1

k= - 2

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