x2 + 13x + 40 = x2 + 5x + 8x + 40 = x(x + 5) + 8(x + 5) = (x + 8)(x + 5)
5x-3=2-8x 5x-3+3=2-8x+3 5x=5-8x 5x+8x=5-8x+8x 13x=5 x=5/13
7+8x-5 = 8x+7-5x Subtract 7 from both sides: 8x-5 = 8x-5x Subtract 8x from both sides: -5 = -5x Divide both sides by -5: x = 1 So the equation implies x = 1
8x + 20 = 4 (2x + 5)
x2 + 8x + 15 = (x + 3)(x + 5)
x2 + 13x + 40 = x2 + 5x + 8x + 40 = x(x + 5) + 8(x + 5) = (x + 8)(x + 5)
It is a linear equation in a single unknown variable, x.
7+3w-13x
5x-3=2-8x 5x-3+3=2-8x+3 5x=5-8x 5x+8x=5-8x+8x 13x=5 x=5/13
8x plus 4y equals 5 is 8x + 4y = 5.
2x2+13x+15 = (2x+3)(x+5)
(x + 1)(3x + 10)
13x + 15 = 11x - 5 2x = -20 x = -10
Let a : b = 5 : 8If the unit part is x, then a = 5x and b = 8x. So we have:5x + 8x = 18213x = 182 divide both sides by 13x = 14Then,a = 5xa = 5 x 14a = 70b = 8xb = 8 x 14b = 112
3x2+13x-10 = (3x-2)(x+5) when factored
13x+27=3x+32 Reorder 13x-3x=32-27 Simplify 10x=5 Simplify x=5/10 Simplify x=1/2 Answer
5 + 8(3 + x) 5 + 24 + 8x 29 + 8x