Question

The difference of a number squared and the number is one less than four times the number.

Answer 1

n^2-n= 4n -1

n^2 -5n +1 = 0
solve using quadratic equation solution formula

Answer 2

so its 0?

Answer 3

no, you need to use the quadratic equation formula

ax^2 + bx + c = 0

solved by x = [-b +- sqrt(b^2-4ac)]/2a