Question
Three times the square of a number minus twice the same number is 8. Find all such numbers.
Answers
Reiny
Direct translation:
3x^2 - 2x = 8
3x^2 - 2x - 8 = 0
(x - 2)(3x + 4) = 0
x = 2 or x = -4/3
3x^2 - 2x = 8
3x^2 - 2x - 8 = 0
(x - 2)(3x + 4) = 0
x = 2 or x = -4/3
Cassandra
Thank
tin
eight times the square of a number z minus three