SOLUTION: 4x^2-7=65

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Question 1027558: 4x^2-7=65
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
To solve this,
4x^2 - 7 = 65
add 7 to both sides
4x^2 = 72
divide by 4
x^2 = 18
take the square root and get
x+=+plus+or+minus+sqrt%2818%29
Then we can simplify the root to get
x+=+plus+or+minus+3%2Asqrt%282%29