CBSE Class 9 Answered
If one Zero of the polynomial 8x^3-4x^2-34x-15 is -1/2,then find the other zeroes
Asked by bandisunithabtech | 30 Sep, 2018, 19:10: PM
P(x) = 8x3 - 4x2 - 34x - 15
According to the question,
(x - 1/2) is a factor of the given polynomial.
8x3 - 4x2 - 34x - 15 = (x - 1/2)(8x2 - 8x - 30)
= 2(x - 1/2)(4x2 - 4x - 15)
= 2(x - 1/2)(2x + 3)(2x - 5)
Hence, other zeroes of a polynomial are -3/2 and 5/2.
Answered by Sneha shidid | 01 Oct, 2018, 11:27: AM
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