if 4x+1=12 4x+1-1=12-1 4x=11 4x/4=11/4 x=11/4
4X - 1 = 9 Is an equation. 4X - 1 = 9 4X = 10 X = 5/2 =====
4x-1=2x+1
-3
16x2 + 8x + 1 = 0 : This factorises to (4x + 1)(4x + 1) = 0 When 4x + 1 = 0 then 4x = -1 : x = -1/4.
(2x-1)(2x-1) = 4x^2 -4x + 1
16x2-8x+1 16: -4*-4=16 -4+-4=-816x2-4x-4x+1|..........|..|.....||..........|..|......1|..........|...2*2x|.........2*2x2*2*2*2xx4x(4x-1)+1(4x-1)Answer: (4x-1)(4x+1)
-5
4X = 16X2 4X - 16X2 = 0 (1 - 4X)4X = 0 ------------------ as you see X = 0 -------- 1 - 4X = 0 - 4X = - 1 X = 1/4 ----------- So, X = 0 and X = 1/4. You check.
12x2 + 7x + 1 = 12x2 + 3x + 4x + 1 = 3x*(4x + 1) + 1*(4x + 1) = (4x + 1)*(3x + 1)
if 4x+1=12 4x+1-1=12-1 4x=11 4x/4=11/4 x=11/4
−(4x+1
4X - 1 = 9 Is an equation. 4X - 1 = 9 4X = 10 X = 5/2 =====
4x-1=2x+1
-3
16x2 + 8x + 1 = 0 : This factorises to (4x + 1)(4x + 1) = 0 When 4x + 1 = 0 then 4x = -1 : x = -1/4.
-3