SOLUTION: five times the square of a certain number is 80.find the number
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Question 639923: five times the square of a certain number is 80.find the number
Answer by josh_jordan(263) (Show Source): You can put this solution on YOUR website!
Five times the square of a certain number is 80. In other words:
To find x, first divide both sides of the equation by 5:
This results in
To get rid of the exponent above the x, take the square root of both sides, since the opposite of "squared" is "square root":
This results in
FINAL ANSWER: 4
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