A street sign is a square with side lengths of (9.6x + 4.8) centimeters. The perimeter of the sign is 433.92 centimeters. Write and solve an equation to find the side length of the street sign.

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%