oliviastarkweather16

27.07.2019 • 

Mathematics

A: what are the solutions to the quadratic equation x^2+9=0?
b: what is the factored form of the quadratic expression x^2+9?
select one answer for question a, and select one answer for question b.
a: x=3
a: x=-3i
a: x=3i or x=-3i
a: x=3 or x=-3
b: (x+3)(x+3)
b: (x-3i)(x-3i)
b: (x+3i)(x-3i)
b: (x+3)(x-3)

Ответ:

anglegirl2313

14.03.2022

Mathematics

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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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Ответ:

elisesnelson

28.12.2020

Mathematics

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I need more information to answer this

Step-by-step explanation:

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