SOLUTION: five times the quare of a number is 980. What is the number? i used x^2 + 5x -980 a=1 b=5 c=-980

Question 704498: five times the quare of a number is 980. What is the number?
i used x^2 + 5x -980
a=1 b=5 c=-980
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
"five times the quare of a number is 980"

translates to

5x^2 = 980

Solve for x

5x^2 = 980

x^2 = 980/5

x^2 = 196

x = sqrt(196) or x = -sqrt(196)

x = 14 or x = -14

Therefore, the number is either 14 or -14.

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