User:Anyaegbunam Onyinye Chukwu Judith/sandbox

QUADRATIC EQUATION This is the most easier way of solving quadratic equation Example 1 x^2+15x+56=0 solution How to sove it original number x2+15x+56=0 x2+15x=0-56 x2+15x=-56

take half of the x term x(that is, divide it by 2) (and dont forget the sign) and square it. Add this square to both side of the equation x2+15x/2+56.25= -56+56.25 7.5 7.5*7.5(56.25)

convert the left hand side to squared form. simplify the right hand side (x+7.5)square = 0.25 square root both sides.REMEMBER do ± on the right hand side √(〖(x〗^2+7.5)) = √0.25 x+7.5= ± 0.5 solve for x= REMEMBER that ± gives you two solution x= -7.5 ± 0.5 = -7.5-0.5 = -7 OR -7.5 + 0.5 = 1 Therefore x = 7, 1 Anyaegbunam Onyinye Chukwu Judith (talk) 19:04, 18 November 2016 (UTC)