i thinking this answer should be -20
-5x2+9x-4 -5x2+9x+-4 Factors of -20 that add to equal 9 are -5 and-4 -5x2+5x+4x+-4 -5x(1x+1) + 4x(1+-1x)
(x + 1)(5x - 1)
It is 4x^2 + 10x - 1
5x2 - 14x + 8 = 5x2 - 10x - 4x + 8 = 5x(x-2) - 4(x-2) = (5x-4)*(x-2)
This would simplify as 4x-5
is a quintic expression in x (NOT an equation).
-5x2+9x-4 -5x2+9x+-4 Factors of -20 that add to equal 9 are -5 and-4 -5x2+5x+4x+-4 -5x(1x+1) + 4x(1+-1x)
(x + 1)(5x - 1)
It is 4x^2 + 10x - 1
2x + 4x + 3 = 6x + 3
7x2 -4x -5x2 +2x = 2x2 -2x
5x2 - 14x + 8 = 5x2 - 10x - 4x + 8 = 5x(x-2) - 4(x-2) = (5x-4)*(x-2)
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)
This would simplify as 4x-5
It is: 4x -34x^2 -21 simplified
x2 + 4x = x(x+4)
6x-2y