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## Completing the square

# Solving quadratics by completing the square

CCSS Math: HSA.REI.B.4, HSA.REI.B.4a, HSA.REI.B.4b, HSA.SSE.B.3, HSA.SSE.B.3b, HSF.IF.C.8, HSF.IF.C.8a

For example, solve x²+6x=-2 by manipulating it into (x+3)²=7 and then taking the square root.