(x - 13y)(x + 13y)
18x + 18y - 4
If y2 + 13y = 40, then y ~ 15.55If y2 + 13y = 0, then y = -13Improved Answer:-y2+13y+40 = 0(y+5)(y+8) = 0Therefore: y = -5 and y = -8
18y+5y+48+15 = 270 18y+5y = 270-48-15 23y = 207 y = 9
6x+14y+8x-18y = 14x-4y
The expression is equivalent to 23y - 3.
18y-8 = 10
(x - 13y)(x + 13y)
9x - 3(x + 13y) = 9x - 3x - 39y = 6x - 39y = 3(2x - 13y)
-2x+13y=11 13y=2x+11 y=2x/13 + 11/13
18x + 18y - 4
If y2 + 13y = 40, then y ~ 15.55If y2 + 13y = 0, then y = -13Improved Answer:-y2+13y+40 = 0(y+5)(y+8) = 0Therefore: y = -5 and y = -8
18y+5y+48+15 = 270 18y+5y = 270-48-15 23y = 207 y = 9
6x+14y+8x-18y = 14x-4y
-26x
42+4y -12 = 13y -12 -2y 4y -13y+2y = 12 -12 -42 -7y = -42 y = 6
9x+18y = 36 18y = -9x+36 y = -1/2x+2 which is now in slope intercept form the slope being -1/2