Problema Solution
Seven is subtracted from a squared number. The result is 282. Find the number.
Answer provided by our tutors
let 'x' be the number
7 subtracted from a squared number x^2 and the result is 282
x^2 - 7 = 282
x^2 = 282 + 7
x^2 = 289
x1 = 17
x2 = -17
there are 2 such numbers: 17 and -17.