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What number must you add to complete the square of x2 plus 14x equals -5?
Wiki User
β 14y ago
Improved answer:
5
x2+14x+5 = 5-5
x2+14x+5 = 0
Solve by completing the square:
(x+7)2+5 = 0
(x+7)2+5-49 = 0
(x+7)2 = 44
x+7 = + or - the square root of 44
x = -7 + or - the square root of 44
Wiki User
β 14y ago
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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
