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44 votes
HELP ASAP I DON'T UNDERSTAND​

HELP ASAP I DON'T UNDERSTAND​-example-1
User Ahnlabb
by
2.6k points

1 Answer

12 votes
12 votes

Answer:

option 3

Explanation:

4x² - 100 = 0 ( add 100 to both sides )

4x² = 100 ( divide both sides by 4 )

x² = 25 ( take square root of both sides )

x = ±
√(25) = ± 5

then

x = - 5 , x = 5

User Apocalypz
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3.0k points