Factorise xsquare+3root3x-30 by splitting method
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x^2+3√3x-15=0
x^2+2√3x-5√3x-15=0
x(x+2√3) -5√3(x+2√3)=0
(x-5√3)(x+2√3)=0
x=5√3, x=-2√3
x^2+2√3x-5√3x-15=0
x(x+2√3) -5√3(x+2√3)=0
(x-5√3)(x+2√3)=0
x=5√3, x=-2√3
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