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4 years ago

13

Please answer asap!!!! will mark brainiest

2 answers:

GarryVolchara [31]4 years ago

7 0

1) add 4 to each side (the -4 will cancel)
Then the equation will be X2= 4
Then cancel the 2 then do the same on the other side
Now you got X=2 (but it could be - or +)

X= 2,-2

Inga [223]4 years ago

3 0

Answer:

x=2

Step-by-step explanation:

We know the only number that gets us back to 0 after subtracting 4 is 4, because 4-4=0. The square root of 4 is 2. Hope my explanation wasn't too confusing!

2²=4

4-4=0

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