4m²-25 how do you solve this problem I don't understand
add 25 to both sides to get 4m^2= 25divide by 4 to give m^2=25/4 (6.25)square root answer to get m= 5/2 (2.5)
4m^2-25 => (ax+b) (ax-b)(2m+5) (2m-5)