Separate variables, impose initial values and retain solution domains
Give exact values. Use the specified answer form and the connected solution interval containing the initial point. Circular arguments are radians
\[y'=(2)(y-(0)),\quad y(0)=-4\]
\[y=0+D e^{Ax^2+Bx}\]
Find D,A,B and the constant solution excluded when dividing by y-(0). The initial displacement is nonzero; the exponent has no constant term