is that 51 or 5•1
4x2 + 12x + 5 = 4x2 + 2x + 10x + 5 = 2x(2x+1) + 5(2x+1) = (2x+1)(2x+5)
4x + 1 = 2x + 5 4x + 1 - 2x = 2x + 5 - 2x 2x + 1 = 5 2x + 1 - 1 = 5 - 1 2x = 4 2x/2 = 4/2 x = 2
-2x = y^5 or y^5 = -2x y = (-2x)^(1/5)
If that's - 8x - 5, the answer is (2x + 1)(2x - 5). If that's + 8x + 5, it gets ugly in a hurry.
2x-1=9 2x=10 x=5
2x + 1 = 6 2x = 5 x = 5/2 or 2.5
-2x=2y+5 +2x -2y -2y=2x+5 /-2 y=-1/1+2.5
you want to put all of the 'x' on one side and all of the numbers on the other side 2x-5=4x-1 2x-5 (-2x +1) = 4x -1 (-2x + 1) -4 = 2x then divide by 2 x=-2
12x + 5 - 2x =(12x - 2x) + 5 =10x + 5 =5 (2x + 1)
-1! -1!
If: 1-2x-5 = 4x+2 Then: -2x-4x = 2-1+5 And: -6x = 6 So: x = -1
y=2x-4 y=2x-5 y=1 1=2x-4 -2x = -5 x=2/5 the solution is (x,y) = (2/5,1)