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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, 07:10: PM
answered-by-expert Expert Answer
P(x) = 8x- 4x- 34x - 15 
According to the question,
(x - 1/2) is a factor of the given polynomial.
8x- 4x- 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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