Do a bit of rearrangement: 1: 10x + 2 = 8y; 2: 8y = 59 - 9x so 10x + 2 = 59 - 9x so 19x - 57 making x = 3 and y is therefore 4.
(9x + 12) / 3 = 3x+4 ■
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
4x+3=9x-4+4 +44x+7=9x-4x -4x7=5x-------57/5=1.41.4=x
5x + 3 - 4 + 4x = 9x -1
Do a bit of rearrangement: 1: 10x + 2 = 8y; 2: 8y = 59 - 9x so 10x + 2 = 59 - 9x so 19x - 57 making x = 3 and y is therefore 4.
(9x + 12) / 3 = 3x+4 ■
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
9x+4 =x-7 8x=-3 x=-3/8
5x + 3 - 4 + 4x = 9x -1
4x+3=9x-4+4 +44x+7=9x-4x -4x7=5x-------57/5=1.41.4=x
11 + 9X
102 +9x +4 = 9x + 106, which is in its simplest form.
5x + 3 - 4 + 4x = 9x -1
5x2 + 9x + 4 = (x + 1)(5x + 4).
81x2 + 72x + 16 = 81x2 + 36x + 36x + 16 = 9x(9x + 4) + 4(9x + 4) = (9x + 4)2