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View Full Version : Solution of mathematics questions for ninth class by pardeep


rsharda
Jun 25, 2010, 10:26 PM
18y3-33y2+2y+5

rsharda
Jun 25, 2010, 10:27 PM
18y3-33y2+2y+5 solve the equition.

Unknown008
Jun 25, 2010, 10:40 PM
Such an equation cannot be solved. There must be an equal sign for it to have solutions.

However, it can be factorised.

By inspection through the factor theorem, I found that 2y - 1 is a factor.

Through long division, I get:

18y^3 - 33y^2 + 2y +5=(2y+1)(9y^2-12y-5)

You can factor the quadratic now. :)