Question

check whether -3 and 3 are the zeros of the polynomial x² - 81​

Answer 1

Answer:

First write the equation correctly according to its degree and after that solve equation for zeroes by split and trial or hit and trial method

For example :

X^2 -3x-10

X^2 +2x -5x-10

X(X+2) -5 (X+2)

(X-5) , (X+2)

So values of X are ;.

X-5 =0

X=5. And X+2=0. X=-2

Thanku