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Put the equation in the form ax^2+bx+c=0 7-3x^2= (x+2)^2-6
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1. Expand (x+2)^2: 7 - 3x^2 = x^2 +4x + 4 -6 2. Add 3x^2 to both sides: 7 = 4x^2 + 4x -2 3. Subtract 7 from both sides: 0 = 4x^2 +4x -9
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