Question

If x=2isa zero of the polynomial x²-2k+2 then the value of k is

Answer 1

EXPLANATION

• GIVEN

x - 2 is a zeroes of polynomial

x^2 - 2k + 2

TO FIND VALUE OF K

Put x = 2 In above equation

we get,

(2) ^2 - 2k + 2 = 0

4 - 2k + 2 = 0

-2k + 6 = 0

k = 3

Therefore,

value of k is 3

MORE INFORMATION

FORMULA

equation of quadratic polynomial

x^2 - ( a + b) x + ab

where,

a + b = sum of zeroes

ab = products of zeroes