How do I use the quadratic formula?

example quadratic eqn: ax2+bx+c=0 => x = (-b+-(b2-4ac)1/2)/2a e.g. 4x2-13x+3/4=0 x= (13+-(157)1/2)/8 = 3.1912, 0.0588

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Answered by Ben B. Maths tutor

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