Please help!

1) -6x(1-4x) + 5(3x-8)
2) 8(-4+7n) + 6n(2n-7)
3)4(3v+1) - 8v(1-8v)
4)4x(7+5x) - 8(-x - 7)

Trying to find x I'm guessing I would

(-6x•1)-(-6x•-4x)+(5•3x)-(5•-8)
-6x+24x^2+15x-40
24x^+9x-40
Now use the quadratic formula to solve for x. You can solve the other prob in the same manner. Hope this helped :)