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Digiron [165]
3 years ago
6

Find the solution for the quadratic equation by completing the square. x^2+18x=63​

Mathematics
2 answers:
vekshin13 years ago
5 0

Good evening ,

Answer:

<h2>x = 3   or   x = -21</h2>

Step-by-step explanation:

x²+18x=63 ⇌ x²+18x+81 = 63 + 81

⇌ (x+9)² = 144  ⇌ (x+9)² = 12² ⇌ (x+9-12)(x+9+12) = 0

⇌ (x-3)(x+21) = 0

⇌ x=3 or x=-21.

:)

Bezzdna [24]3 years ago
4 0

Answer:

the answer is B -21, 3

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