x^2 + 4y^2=20 and x+2y=6 I solved for y and set them equal to each other but the x's cancel out. What else could I do?
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Originally Posted by MathNeedy18 x^2 + 4y^2=20 and x+2y=6 I solved for y and set them equal to each other but the x's cancel out. What else could I do? I think you made a mistake...solving and setting them equal I got
Originally Posted by Mathstud28 I think you made a mistake...solving and setting them equal I got I think I am doing the algebra wrong because when I solve that, the 1/4 cancel out.
Originally Posted by MathNeedy18 x^2 + 4y^2=20 and x+2y=6 I solved for y and set them equal to each other but the x's cancel out. What else could I do? and subbing into the first equation we get so x=2 or x=4 sub these values back into the linear equation so we get the two points (2,2) and (4,1)
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