SOLUTION: Jack bought a new digital camera as a birthday present for his wife, but by the time he needed to record the purchase in his checkbook register, he forgot how much he had paid for
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-> SOLUTION: Jack bought a new digital camera as a birthday present for his wife, but by the time he needed to record the purchase in his checkbook register, he forgot how much he had paid for
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Question 332065: Jack bought a new digital camera as a birthday present for his wife, but by the time he needed to record the purchase in his checkbook register, he forgot how much he had paid for it (let’s just call this amount "x"). He only remembered one small detail: six (6) less than the square of this amount is equal to the amount itself. How much did he pay for the camera? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! call this amount "x"). He only remembered one small detail: six (6) less than
the square of this amount is equal to the amount itself. How much did he pay
x^2 - 6 = x
x^2 - x - 6 = 0
Factors to
(x-3)(x+2) = 0
positive solution
x = $3, it must have been "hot";
:
Check: 3^2 - 6 = 3
