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A few algebra questions.
Tomorrow i have an algebra test and there are a few things on the reivew that I don't understand:
One problem is: One of the zeros of a polynomial is x=1. Use this fact to completely factor: 3x^3 + 4x^2 - 5x - 2. I don't understand how to work it. Do I just plug in 1 for x and solve it that way?
And the other two I don't get say, 'Solve by Factoring' and the problems are: 6x^2 + x - 40 = 0 and 2x^3 - 3x^2 - 18x + 27 = 0.
And the last question is: How do I write an equation in standard form with zeros: -3, 1, and plus or minus 2i?
Thank you very much!
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I don`t know the second one, but like the girl down there said, you just plug in the 1`s as the x`s. x= 1. So you replace the x`s with the formual they gave you. Get it?
Sorry I didn`t help on the second one.
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Im not going to be much help because i didnt do so hot in algebra but the first one i believe you plug the 1 into all teh x's and solve it that way.
Sorry.
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