Can someone help me please with that homework
Use the quadratic formula to solve the equation.
1) 8x2 + 1 = 5x
2) 2x2 + 10x = - 5
3) (x + 19)(2x - 20) = 9(x - 1) - 380
4) z2 /-4 = z/ 9+5/-36
5) (2x - 1)2 = 81
6) (x - 12)2 = -64
7) 1/ x + 1 /x + 6 = x +7/x+6