2x + 7 + 5x - 4 - x = (2x + 5x - x) + (7 - 4) = 6x + 3
The factors of x2 + 5x + 4 would be (x + 1) and (x + 4)
(x+1)(x+4)
4 + 5x = 1 5x = 1 - 4 5x = -3 x = -3/5 x = -0.6
5x2 + 20x = 5x (x + 4)
2x + 7 + 5x - 4 - x = (2x + 5x - x) + (7 - 4) = 6x + 3
The factors of x2 + 5x + 4 would be (x + 1) and (x + 4)
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
(x+1)(x+4)
5x^2 + 20x
4 + 5x = 1 5x = 1 - 4 5x = -3 x = -3/5 x = -0.6
5x2 + 20x = 5x (x + 4)
(x + 4)(x + 1)
(x + 4)(x + 1)
Since 5x + 20 is a multiple of x + 4, it is automatically the LCD of this problem.
(x + 4)(x + 1) x = -1 or -4
If you mean: x+4(x+5) then it is 5x+20