Question

if a and b are zeroes of p(x) = 2x square-x-6 then find the value of a^-1+b^-1​

Answer 1

Answer:

-1

Step-by-step explanation:

P(x)=2x² - x - 6

=2x² + 3x - 4x - 6

=x(2x+3) - 2(2x+3)

P(x)=(x-2)(2x+3)

Hence x = 2 and x =-3/2 are the zeros of P(x)

let a = 2 and. b = -3/2

then, 1/a + 1/b = 1/2 + (-3/2)

= 1/2 - 3/2

= -1