0
Anonymous
X = √63
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7(3y-2)-(-4y+9)
6 squared plus 9 squared is equal to 117.
-5x + x + 9 = -4x + 12 -4x + 9 = -4x + 12 9 = 12 This equation has no solution.
{-1,7}
Using the discriminant the possible values of k are -9 or 9