are -3 and 3 zeroes of polynomial x2-9
shritisinha563:
yes,both are the zeroes of x2-9. becoz √9 is either 3or -3
How solve it....
x2-9 => x2=9 => x=√9 => x= 3 or (-3)
I have understood that x multiple to 9
Answers
Answered by
2
yes both are the zeroes of polynomial x2-9 bcs if we put the value of x as -3then it stasify the polunomial and when we put x as 3 then also it stasify the polynomial
right janvi
Answered by
0
Hi !
To check whether the given no:s are zeros of a polynomial , just put the value as x .
p(x) = x² - 9
x = -3
p(-3) = (-3)² - 9
= 9 -9 =0
-3 is a zero of the polynomial.
----------------------------------------------------------------------------------------------
x = 3
p(3) = (3)² - 9
= 9 - 9 = 0
3 is a zero of p(x).
================================================
-3 and 3 are zeros of the polynomial x² - 9
To check whether the given no:s are zeros of a polynomial , just put the value as x .
p(x) = x² - 9
x = -3
p(-3) = (-3)² - 9
= 9 -9 =0
-3 is a zero of the polynomial.
----------------------------------------------------------------------------------------------
x = 3
p(3) = (3)² - 9
= 9 - 9 = 0
3 is a zero of p(x).
================================================
-3 and 3 are zeros of the polynomial x² - 9
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