-1! -1!
8x2 + 2x - 1 = 8x2 + 4x - 2x - 1 = 4x(2x + 1) - 1(2x + 1) = (4x - 1)(2x + 1)
2x-1=9 2x=10 x=5
if you mean 2x-1*3 then the answer is: 2x-3
2x+1 = 9 2x = 9-1 2x = 8 x = 4
2x2 + 2x = 2x(x+1)
(2x-1) or (2x+1) must both be odd numbers.
(2x−1) ²
8x2 + 2x - 1 = 8x2 + 4x - 2x - 1 = 4x(2x + 1) - 1(2x + 1) = (4x - 1)(2x + 1)
8x-4
2x - y -(-1) = 2x - y + 1
4x + 1 = 2x + 5 Subtract '1' frp, bpth sides Hence 4x = 2x + 4 Subtract '2x' from botbh sides 2x = 4 Divide both sides by '2' x = 2 The answer!!!!!!
4
3x(2x + 1) over (2x - 1)(2x + 1) Cancel out the 2x + 1 Answer: 3x/2x - 1
2x2- 2x = 2x*(x - 1)
Assuming that 4x2+2x = 0: 2x (2x+1) = 0 2x = 0 or 2x+1 = 0 x = 0 or -1/2
2x - 1 = 0 2x = 1 x = 0.5
3