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blondinia [14]
3 years ago
9

Factor the expression over the complex numbers. x2+36 Enter your answer in the box.

Mathematics
2 answers:
Zina [86]3 years ago
8 0

hope this help Answer:( x - 3i√2)(x + 3i√2)

solve x² + 18 = 0

x² = - 18 ⇒ x = ±√- 18 = ±3i√2

factors are ( x - (3i√2))(x - (-3i√2))

x² + 18 = (x - 3i√2)(x + 3i√2

Step-by-step explanation:

mafiozo [28]3 years ago
4 0

Answer:

x^{2}+36=(x-6i)(x+6i)

Step-by-step explanation:

The given expression is

x^{2}+36

It's understood that this expression is equal to zero

x^{2} +36=0

Now, we isolate the variable and then apply a squared root to each side of the equation

x^{2}=-36\\x=\±\sqrt{-36}

At this point, you'll find that the equation doesn't have solution in the real numbers, that is, all solutions are in the complex numbers. We need to add the imaginary number i=\sqrt{-1} to continue

x=\±\sqrt{-36}\\x=\±\sqrt{36}i\\x=\±6i\\\\x_{1}=6i\\x_{2}=-6i

Now, representing these solution as factors, we would have

x-6i=0\\x+6i=0

Finally,

x^{2}+36=(x-6i)(x+6i)

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