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stepladder [879]
3 years ago
15

X^2 +18 =15 could anyone help me with this?

Mathematics
2 answers:
stiv31 [10]3 years ago
8 0

Answer:

x = i√3, -i√3

Step-by-step explanation:

Simply take the root of both sides, then solve.

Bess [88]3 years ago
3 0

Answer: x = \sqrt{-3} or x = 3i

Step-by-step explanation:

So first you subtract 18 from both sides to cancel out the 18 on the left side.

x^2 = -3

Then you take the square root of both sides in order to get x alone. Then you get an answer of x = \sqrt{-3} which is an imaginary number and can be written as x = 3i.

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