CBSE Class 10 Answered
Verify whether 2 is a zero of the polynomial x3 + 4x2 - 3x - 18 or not?
Asked by Topperlearning User | 26 Jul, 2017, 09:10: AM
Expert Answer
p(x) = x3 + 4x2 - 3x - 18
Now, 2 will be a zero of the polynomial if p(2) = 0.
We have:
p(2) = (2)3 + 4(2)2 - 3(2) - 18
= 8 + 16 - 6 - 18
= 24 - 24
= 0
Thus, 2 is a zero of the polynomial x3 + 4x2 - 3x - 18.
Answered by | 26 Jul, 2017, 11:10: AM
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