-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)
5x2 + 20x = 5x (x + 4)
3
9x + 4 - x + 8 = 8x + 12
9x + 4 = 6 9x = 6 -4 9x = 2 x = 2/9
-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)
81x2 + 72x + 16 = 81x2 + 36x + 36x + 16 = 9x(9x + 4) + 4(9x + 4) = (9x + 4)2
As written, -5x + 9x = 4x 4x - 4 = 4(x - 1) If that's -5x2 + 9x - 4, that factors to -(x - 1)(5x - 4)
11 + 9X
102 +9x +4 = 9x + 106, which is in its simplest form.
5x2 + 20x = 5x (x + 4)
3
9x + 4 - x + 8 = 8x + 12
9x + 4 = 6 9x = 6 -4 9x = 2 x = 2/9
-9x + 4 = -50 -9x = -50 - 4 -9x = -54 -x = -6 x = 6.
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
9x + 32