x2 + 8x + 15 = (x + 3)(x + 5)
x² + 8x + 15 = (x + 5)(x + 3)
x=5
That heavily depends on the value of 'x'.
If the equasion is 12x+6-8x-4x-3+12 then the answer is 15.
8x / 15 = 80Multiply each side by 15:8x = 1,200Divide each side by 8:x = 150
8x = 2x + 15 6x = 15 x = 15/6 = 2.5
y = 15 - 8x/3 y - 15 = -8x/3 15 - y = 8x/3 x = 3/5(15 - y) and so x = 9 - 3y/5
x2 + 8x + 15 = (x + 3)(x + 5)
x2-8x+15 = (x-3)(x-5)
x2 + 8x + 15 = (x + 3) (x + 5).
8x = 120divide the equation by 8 8x/8 = 120/8 x = 15
X2 - 8X + 15 = (X - 3)(X - 5)
x² + 8x + 15 = (x + 5)(x + 3)
15
8x + 15 = 7 so 8x = 7 - 15: x = -1
8x+39 = 2x-15 6x = -54 x = -9