3x=2x-12x=-12
3x+7=2x-5 x=-12
x = 15
2x to the fourth power minus 162 equals -146
x = 4 and y = 7
3x=2x-12x=-12
3x+7=2x-5 x=-12
4x - 7 = 2x + 5 2x - 7 = 5 2x = 12 x = 6.
2x+2=12
x = 15
2x to the fourth power minus 162 equals -146
x = 4 and y = 7
40
(2x - 4)(2x + 3) The key is to look for all the factor pairs of 12.
(4+x) (2x-3)
X=27
D.4(2x - 3)(2x + 1)