Question 1016706: When the sum of 511 and four times a positive number is subtracted from the square of the number, the result is 110. Find the number Answer by ikleyn(52797) (Show Source):
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When the sum of 511 and four times a positive number is subtracted from the square of the number, the result is 110. Find the number
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Your equation is
= .
Solve it:
= .
Factor it:
= (x-27)*(x+23).
The roots are x = 27 and x = -23.
Only positive x = 27 suits.
