Question

What is zero of polynomial 2x^2+9x-5

Answer 1

Answer:

Step-by-step explanation:

zero of polynomial means the value of x which is yeilding the polynomial as 0

2x²+9x-5

by mid term splitting 2x²+10x-x -5 =0

                                 2x(x+5) -1(x+5) =0

                                  ( 2x-1)(x+5)=0

      therefore each term should be 0 so x can be 1/2  and -5

hope my answer helped you

Answer 2

Answer:

x = – 5 or x = 1/2

Step-by-step explanation:

To find the zero of the given polynomial, take

2x2 + 9x - 5 = 0

⇒ 2x2 + 10x – x – 5 = 0

⇒ 2x(x + 5) – 1(x + 5) = 0

⇒ (x + 5)(2x  – 1) = 0

⇒ (x + 5) = 0  or (2x  – 1) = 0

∴ x = – 5 or x = 1/2

Hence the zeroes of the given polynomial are – 5, 1/2.

HOPE THIS IS HELPFUL TO YOU...........