is solving quadratics in the foundation aqa gcse paper?

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  • 4 weeks ago

    x^2 + 5x + 6 = 0 

    Write down all the multiples of '6' , they are 1,6 ; 2,3.

    Look for a pair of numbers that add to '5' , they are 2,3.

    Hence 

    (x + 2)(x + 3) = 0 

    Then 

    x + 2 = 0 

    x = -2 

    or 

    x + 3 = 0 

    x = -3 

    So the two solutions are -2, & -3. 

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  • Lôn
    Lv 7
    4 weeks ago

    Only the simple ones like

    x^2 + 5x + 6 = 0

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