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Quadratic simultaneous equations?

What are the different methods of working out a quadratic simultaneous equation?

I know there is factorisation but is there anything else?

(An example of a quadratic simultaneous equation:)

x(squared) + 8x + 16 = 0

2 Answers

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  • 1 year ago

    I don't understand how this can be simultaneous equations, when there is only one equation in one unknown.

    For solving a single quadratic equation, have you seen the standard quadratic solution:

    roots = [ - b +/- sqrt( b^2 - 4ac) ] / [ 2a ]

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  • 1 year ago

    the Vieta's formulas

    see mor below

    https://en.wikipedia.org/wiki/Vieta%27s_formulas

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