Question

If a-b,a and a+b are zeros of polynomial f(x)=2xcube-6xsquare+5x-7,write the value of a

Answer 1

Answer:

HII MATE

HERE'S THE ANSWER

Step-by-step explanation:

p(x)=2x

3

−6x

2

+5x−7

( a + b ), ( a ), ( a - b ) are the Zeroes of p(x).

As we know,

sum \: \: of \: \: zeroes \: = \frac{ - b}{a}sumofzeroes=

a

−b

a + b + a + a - b = \frac{ - ( - 6)}{2}a+b+a+a−b=

2

−(−6)

3a = \frac{6}{2}3a=

2

6

3a = 33a=3

a = 1a=1

Therefore, value of a is 1 .

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