(2x + 5) + (5x - 6) + (-4x + 2) = 3x + 1
There are three items so average = (3x + 1)/3 = x + 1/3
7x2 -4x -5x2 +2x = 2x2 -2x
4x - 7 = 2x + 5 2x - 7 = 5 2x = 12 x = 6.
8x^2 + 6x - 5 = 8x^2 + 10x - 4x - 5 = 2x * (4x + 5) - (4x + 5) = (2x -1) * (4x + 5)
2x^3 - 3x^2 + 4x - 3
4x+2y-8=0 2y=8-4x y=4-2x slope= -2
7x2 -4x -5x2 +2x = 2x2 -2x
(2x-1)(2x-1) = 4x^2 -4x + 1
2x+7x-10=4x+3-2x 9x-10=2x+3 7x=13 x=13/7ans
-x2+2x
3x - 5x + 4x = -2x +4x = 2x
4x - 7 = 2x + 5 2x - 7 = 5 2x = 12 x = 6.
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
There is no rational factorisation.
(2x - 9)(2x - 9) or (2x - 9)2
(2x - 9)(2x - 9) or (2x - 9)2
Assuming there are no parentheses:2 times X - 1 + 4X - 6 + 2X =2X - 1 + 4X - 6 + 2X =2X + 4X + 2X - 1 - 6 =8X - 1 - 6 =8X - 7
-4x-1-3x-4+5 = -7x-1-2x+1+6 -7x = -9x+6 2x = 6 x = 3