factorise the following- x square-10x-56
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x^2-10x-56=0
x^2-14x+4x-56=0
x(x-14)+4(x-14)=0
(x-14)(x+4)=0
x-14=0 x+4=0
x=14 x=-4
x^2-14x+4x-56=0
x(x-14)+4(x-14)=0
(x-14)(x+4)=0
x-14=0 x+4=0
x=14 x=-4
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