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SVETLANKA909090 [29]
3 years ago
11

A: What are the solutions to the quadratic equation x^2+9=0?

Mathematics
1 answer:
Nataliya [291]3 years ago
3 0

Answer:

Part A)

x=-3i

x=3i

Part B)

(x+3i)(x-3i)

Step-by-step explanation:

Given:

Part A)

x^2+9=0

x^2=-9

x= √-9

x=√-1 *√9

x=± i *3

x=±3i

Part B)

x^2+9=0

x^2 - (-9)=0

x2-(3i)^2=0

(x-3i)(x+3i)=0 !

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