How do you solve dy/dx=(y−1)(y+1) if the solution passes through the point (x, y)=(4,0)(x, y)=(4,0)?

i got y=(1+e^(2x-8))/(1-e^(2x-8)) but it was wrong: (

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Two less than the quotient of a number and four is less than six. i need the inequality. a. x< 32 b. x< -32 c. x> 16 d. x> -16