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Lana71 [14]
3 years ago
15

Solve: 4x^2=100 What’s the answer

Mathematics
2 answers:
klasskru [66]3 years ago
5 0

Answer:

x=5 or -5

Step-by-step explanation:

4x^2=100

x^2=25

x=5 or -5

stellarik [79]3 years ago
4 0

Answer:

x=5 or x=-5

Step-by-step explanation:

To solve this, we need to get x by itself.

4x^2=100

First, we need to get rid of the coefficient: 4. To do this, divide both sides by 4.

4x^2/4=100/4

x^2=25

x is being squared. To get rid of the exponent, take the square root of both sides.

x=5 or x=-5

If we want to check our answer, substitute 5 and -5 in for x

4x^2=100

4(5^2)=100

4(25)=100

100=100

4x^2=100

4(-5^2)=100

4(25)=100

100=100

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