4x2 + 28x + 49 = 4x2 + 14x + 14x + 49 = 2x(2x + 7) + 7(2x + 7) = (2x + 7)(2x + 7) or (2x + 7)2
-7 +2x = x + 8 2x - x = 7 + 8 x = 15
14
5x - 3 + 2x + 7 = ?7x + 5 = ?
Y = 2x-5 and Y = 2x plus 7 is a linear system which intersects at points (-2,2)
4x2 + 28x + 49 = 4x2 + 14x + 14x + 49 = 2x(2x + 7) + 7(2x + 7) = (2x + 7)(2x + 7) or (2x + 7)2
2x = -7 - 8y
-7 +2x = x + 8 2x - x = 7 + 8 x = 15
14
The slope of the line of 2x plus 2y equals 7 is (7/2x - 1).
5x - 3 + 2x + 7 = ?7x + 5 = ?
5x+7
Y = 2x-5 and Y = 2x plus 7 is a linear system which intersects at points (-2,2)
X=7
2x+3 = 7 2x = 7-3 2x = 4 x = 2
It is: x+4+2x-7 = 3x-3 simplified
6x - 8 + 2x - 5 = 7 - 2x ?