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What number must you add to complete the square of x2 plus 14x equals -7?
Wiki User
∙ 12y ago
49
x2 + 14x = -7
x2 + 14x + 49 = 42
(x + 7)2 = 42
x = -7 ± √42
Wiki User
∙ 12y ago
APEX User
49
APEX 2021
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it is 121
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What number must be added to complete the square of x SQUARED plus 12x equals -3?
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144
What number must be added to the polynomial to complete the square x2-5x?
-3
