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earnstyle [38]
4 years ago
5

X squared + 12 x + 3 = 7 solve by completing the square

Mathematics
2 answers:
GarryVolchara [31]4 years ago
5 0

ax^2 + bx + c

x^2 + 12x + 3 = 7

x^2 + 12x = 4

Take b, half it, then square it--

x^2 + 12x + 36 = 40

That equation becomes

(x+6)^2 = 40

+ 6 = ± (square root of 40)

= 0.324555

= −12.3246

Naddika [18.5K]4 years ago
5 0

Answer:

1/6?

Step-by-step explanation:

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