Answer:A quadratic equation is an equation where the highest power of the variable (usually 'x' or, in this case, 'm') is 2. It's always possible to write it in the standard form: ax² + bx + c = 0 where 'a', 'b', and 'c' are constants (numbers), and 'a' is not zero (otherwise it wouldn't be a quadratic). The solutions to a quadratic equation are the values of 'x' that make the equation true. There are usually two solutions, but sometimes there's only one (a repeated root), or sometimes there are no real solutions (only complex solutions involving imaginary numbers).
Answer:Step-by-step explanation:5 m² - 5m-1=0 solve the equation by formula method. 1. See answer