X2+y2-x+2x+3x2-4y2=?

Answers:
From your original equation:
x² + y² - x + 2x + 3x² - 4y²

Group like terms:
= (x² + 3x²) + (y² - 4y²) + (2x - x)

Then simplify:
= 4x² -3y² + x

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Do your own hw. This is the homeschooling section.

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You seem to be asking a lot of questions today. Do you know how to solve these at all?

Basically, you want to know how many x^2's, y^2's and x's you have. For your x^2's, you have x^2 and 3x^2. So how many x^2's do you have? 4, so 4x^2

For your y^2's, how many do you have? y^2 -4y^2, so -3y^2.

For your x's, you have -x and 2x, which is -x.

Put them all together: 4x^2 - 3y^2 - x.


For a great algebra help site, go to http://www.purplemath.com

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3y+4x2+1x

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