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OpenStudy (anonymous):
quadratic equations: solve: y(y+1) = 2?
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jhonyy9 (jhonyy9):
y2 +y-2=0 (y+2)(y-1)=0
OpenStudy (turingtest):
multiply out the y into the parentheses, then rearrange the equation to be of the form\[ax^2+bx+c=0\]then factor, use the quadratic formula, or complete the square
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