Expanding the brackets: 6x+21 = 3(2x+7)
It is equivalent to: 32x^2 +88x +21
(x - 5)(5x - 7)
4x + 32x + 9 = 36x + 9
15x + 32x - 28 = 47x - 28 = (√47x)2 - (√28)2 = (√47x)2 - (2√7)2 = (√47x - 2√7)(√47x + 2√7)
32x + 8 – 34x
If 32X + 53 = 501, then 32X = 448, and X = 448/32 = 14.
35x + 10
That's pretty easy. Just add the like terms (2x and 32x) and keep the 3. You get 34x plus 3.
Isolating xx = (6+6)/32x = 0.375
-16x2 + x + 8 = -1/64(32x - 1 - √513)(32x - 1 + √513)
32x + 4
If you mean 4x-32x-4 = 0, the answer is x= -1/7