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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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∙ 14y agoThis answer is:
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Wiki User
∙ 12y agox2+2x-63 = 0
(x-7)(x+9) = 0
x = 7 or x = -9
Use the quadratic equation formula
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