-x2+2x
If: 5x = 4x+7 Then: 5x-4x = 7 And: x = 7
Separate and simplify the common terms. 5x^2 - X^2 = 4x^2 -7x - 2x = -9x Now put these terms back together 4x^2 - 9x Or if simplified further, you get: x(4x-9)
That will depend entirely on the plus or minus values of the given terms which have not been included and whether or not it is an equation.
-5x + 2(4x-10)=10
minus 4 plus 9 = 5, so 5x
9x+7
Right, 3x-4x+9x-x1. 3x - x = 2x2. 9x-4x = 5x- 2x +5x = 7x
10x2 + 21x - 10 = 10x2 + 25x - 4x - 10 = 5x(2x + 5) - 2(2x + 5) = (2x + 5)(5x -2)
7x2 -4x -5x2 +2x = 2x2 -2x
20x2 - 27x -8 20 * -8 is -160, and -32 and 5 add to -27 20x2 - 32x + 5x - 8 4x(5x-8) + 1(5x-8) (4x + 1)(5x-8)
-x2+2x
x= -11
3x - 5x + 4x = -2x +4x = 2x
In this case you just add them together to make 9x.
y-5x
This would simplify as 4x-5