4x times 4x equals 16x2.
3x + 7 = -4x + 28 implies 7x + 7 = 28
4(x - 7)
-4x=7y-28 -4x+28=7y -4x/7+4=y A line with a y-int of 4 and a slope of -4/7
Divide 28 by 4. X = 7
8x-5=23+4x 8x-5-4x=23+4x-4x 4x-5=23 4x-5+5=23+5 4x=28 4x/4=28/4 x=7
(4x + 5)(3x - 7)
4(x + 1) = 0.
3x - 7 + 4x = 28 7x - 7 = 28 I added 4x and 3x to get 7x 7x = 35 I subtracted 7 from both sides x = 5 I divided by 7 on both sides
If: 4x-7y-28 = 0 then y = 4/7x-4 whereas 4/7 is the slope and -4 is the y intercept
x = 9 and y = 28
y = x2 - 4x + 4 can be factored into y = (x-2)(x-2) The repeated factor is 2.