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x2+2x-63 = 0

When factorised:

(x-7)(x+9) = 0

Therefore: x = 7 or x = -9

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15y ago

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Wiki User

13y ago

x2+2x-63 = 0

(x-7)(x+9) = 0

x = 7 or x = -9

Use the quadratic equation formula

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