Question

If a minus b a and a + b are zeros of the polynomial f x equals to 2 x cube minus 6 x square + 5 x minus 7 write the value of a

Answer 1

Answer:

Value of a=1

Step-by-step explanation:

Given is a-b, a and a+b are the zeroes of the polynomial f(x)=2x^{3}-6x^{2}+5x-7f(x)=2x

3

−6x

2

+5x−7 , then

sum of zeroes=\frac{-coefficient of x^{2}}{coefficient of x^{3}}

coefficientofx

3

−coefficientofx

2

a-b+a+a+b=\frac{6}{2}a−b+a+a+b=

2

6

3a=33a=3

a=1a=1

Thus, the value of a is equal to "1"