Question

If á and â are the zeros of polynomial 5x2+ 2x - 3 then find the value of á + â.​

Answer 1

Answer:

given :- a' and a" are the zeros of the polynomial .

to find :- the value of zeros .

5x² + 2x - 3 = 0

5x² + 5x - 3x - 3 = 0

5x( x + 1 ) -3( x + 1 ) = 0

(5x - 3) (x + 1) = 0

x = -3/5 and x = -1

therefore,

a' = -3/5

a" = -1

Answer 2

Answer:

Now factories

5x2+ 2x - 3=0

=. 5x2+5x-3x-3=0

=. 5x(x+1)-3(x+1)=0

=. (x+1) (5x-3)=0

x+1=0. 5x-3=0

=. x=-1. =. 5x=3

=. x= 3/5

Now x=-1 and 3/5

so value of á=-1 â=3/5

Value of á+â=

-1+3/5

=. -5+3

5

=. -2/5