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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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