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Check whether 3 and -2 are the zeroes of the polynomial p(x) when p(x)= x2-x-6.
Answers
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3
➡ x² - x - 6 = 0
➡ x² - 3x + 2x - 6 = 0
➡ x(x - 3) + 2(x - 3) = 0
➡ (x - 3)(x + 2) = 0
➡ x - 3 = 0 ; x + 2 = 0
➡ x = 0 + 3 ; x = 0 - 2
➡ x = 3 ; x = - 2
Hence, - 2 & 3 are the zeroes of the polynomial.
Step-by-step explanation:
Answered by
2
Answer:
suppose X=3
p(3)=3^2 - X - 6
= 9-3-6
=6-6
=0
therefore 3 is a zero
....,.....,......
suppose X= -2
p(-2)= -2^2-2-6
=4-2-6
=2-6
= -4
therefore -2 is not a zero
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