Find the solutions to the quadratic equation x^2-9x+20=0

By factorising the expression, (x-5)(x-4)=0. This means that either (x-5)=0 or (x-4)=0. By solving these equations we can work out the solutions to be x=4,5.

Answered by Chris M. Maths tutor

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How do you solve linear algebraic equations?


Solve 2x^2 - x - 21 by factorising


Factorise fully 3*a^3*b +12*a^2*b^2 + 9*a^5*b^3


x^2 = 4(x – 3)^2


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