someone can help me tomorrow is my paper.
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find all the zeros of the polynomial 2x³+5x²-28x-15.
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Answered by
3
Given Equation is 2x^3 + 5x^2 - 28x - 15.
(x - 3)(2x^2 + 11x + 5)
(x - 3)(2x^2 + x + 10x + 5)
(x - 3)(x(2x + 1) + 5(2x + 1))
(x - 3)(x + 5)(2x + 1)
x = 3, -5, -1/2.
Therefore the zeroes of the polynomial are 3,-5,-1/2.
Hope this helps!
(x - 3)(2x^2 + 11x + 5)
(x - 3)(2x^2 + x + 10x + 5)
(x - 3)(x(2x + 1) + 5(2x + 1))
(x - 3)(x + 5)(2x + 1)
x = 3, -5, -1/2.
Therefore the zeroes of the polynomial are 3,-5,-1/2.
Hope this helps!
siddhartharao77:
Gud Luck for your exams.
thks
For me?!
sir , one query , can this be done with the trial and error method? But in this way the process would be tedious , right?
Yes
thank you
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5
Hi,
Please see the attached file!
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Please see the attached file!
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