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• CBSE×
• Class 9×
• Mathematics×
• Polynomials×

# Polynomials Free Doubts and Solutions

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## Find value of a in 2x3+ax2-8x+a,when it is given that it is completely divisible by x-3 and hence factorise the polynomial

Asked by nisha_vini29 25th February 2019, 3:17 PM

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## I want 50 trigonometric identities

Asked by md775016 18th August 2017, 9:19 PM

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## If (x-2) and (x-1/2) are factors of px^2+5x+r , then show that p=r.

Asked by shiyamsaarathi 14th September 2016, 7:55 PM

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## What must be subtracted from x^3-6x^2-15x+80 so that the result is exactly divisible by x^2+x-12?find using factor theorem.

Asked by abinash.gupta003 26th July 2016, 6:39 PM

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## Prove that (X+Y)^3-(X-Y)^3-6Y(X^2-Y^2)=8Y^3

Asked by abinash.gupta003 21st July 2016, 9:04 PM

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## x3+ y3=( x+y) (x2- xy+ y2)

Asked by Dhwani 19th July 2016, 11:26 AM

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## If x/y and y/x = -1 for all y then find x cube-y cube.

Asked by Virender 24th April 2016, 4:21 PM

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## factorise y^3-2y^2-29y-42

Asked by amanansuresh 18th September 2015, 5:47 AM

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## if x2 plus 1/x sqaure = 62 find value of x3 plus 1/x3

Asked by cute_ridhhi18 14th August 2015, 7:29 PM