27,008
12 - 4 = (1 * 1) - 4 = 1 - 4 = -3
-4 - 12 = -16
3x^4 - 12 = 3(x^4 - 4) = 3(x² + 2)(x² - 2)
It is 3/4 minus 1/3 is the same as 9/12 minus 4/12 = 5/12
27,008
4²-3+11-12 = 16-3+11-12 = 12
(x2 - 16) = (x + 4) (x - 4)
12 - 4 = (1 * 1) - 4 = 1 - 4 = -3
676
-4 - 12 = -16
-12 * * * * * Wrong! -4 minus -8 = -4 + 8 = +4
-4 minus -12 is 8.
3x^4 - 12 = 3(x^4 - 4) = 3(x² + 2)(x² - 2)
It is 3/4 minus 1/3 is the same as 9/12 minus 4/12 = 5/12
-4 - 8 = -12
-4 + 12 = 8