Question Solve the equation Solve for a Solve for y a=y2+1a=−y2+1 Evaluate a2−y2−1=0Move the expression to the right-hand side and change its sign a2=0+y2+1Removing 0 doesn't change the value,so remove it from the expression a2=y2+1Take the root of both sides of the equation and remember to use both positive and negative roots a=±y2+1Solution a=y2+1a=−y2+1 Show Solution