Question

Solve: n^2/2 -2 = 5n/6

Answer 1

Answer:

  n = -4/3  or   n = 3

Step-by-step explanation:

Multiply by 6 to eliminate fractions, then put into standard form.

  3n^2 -5n -12 = 0

  3n^2 -9n +4n -12 = 0 . . . . . separate -5n into two terms to facilitate factoring

  3n(n -3) +4(n -3) = 0 . . . . . factor pairs of terms

  (3n +4)(n -3) = 0 . . . . . . . . . factor out the common factor

  n = -4/3   or   3 . . . . . . . values that make the factors be zero