(2x + 1)(4x - 7)
2x^8 -16x^7 +10x^6 = 2x^6(x^2 - 8x + 5)
4x+7-8x=17-4x+7=17-4x=10x = -5/2
This is not factor-able.
(5x - 7)(x + 3)
8x+7=55 8x=55-7 8x=48 x=48/8 x=6
53
2x^8 -16x^7 +10x^6 = 2x^6(x^2 - 8x + 5)
4x+7-8x=17-4x+7=17-4x=10x = -5/2
If that was - 10x + 21, it would factor to (x - 3)(x - 7) If that was + 10x + 21, it would factor to (x + 3)(x + 7) As it is, the solutions are irrational.
45
If that's + 10x + 21, the answer is (x + 7)(x + 3)
This is not factor-able.
(x - 7)(x - 3)
(5x - 7)(x + 3)
This is not right as 10x7 is 70 and 8x13 is 104 the equals means they should both have the same answer. hope this helps ;)
(x - 7)(x - 3)
That doesn't factor neatly. Applying the quadratic equation, we find two imaginary solutions: (-7 plus or minus the square root of -371) divided by 10x = -0.7 + 1.9261360284258224ix = -0.7 - 1.9261360284258224iwhere i is the square root of negative one.