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Ksenya-84 [330]
3 years ago
5

solve n^2+ 3n - 12 = 6 using quadratic equation by completing the square and describe in detail each step

Mathematics
1 answer:
Blizzard [7]3 years ago
4 0

Answer:

n  =  3 , − 6

Step-by-step explanation:

n ^2 + 3 n − 12 = 6 .

Subtract  6  from both sides.

n ^2 + 3 n − 12 − 6 = 6 −6

n^ 2 + 3 n − 18 = 0

⇒ ( n + 6 ) ( n − 3 ) = 0

∴ n =  − 6 , 3

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Shiva uses 8.2 pints of blue paint and white paint to paint her bedroom walls. 3/4 of this amount is blue paint, and the rest is
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4 years ago
sing the expression x + 3, write one equation that has one solution, one equation that has no solution, and one equation that ha
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Step-by-step explanation:

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4 years ago
Solve for x.<br> -2x + 6 ≤ 20<br><br> Please include steps.
s2008m [1.1K]

I hope this is helpful and sorry for my handwriting

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3 years ago
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