Answers

The Brainliest Answer!
2016-03-16T23:08:10+05:30
3x^2+√21x-14=0 //3x^2+2√21x-√21x-14=0 //√3x(√3x+2√7)-√7(√3x-2√7)=0 //(√3x-√7)(√3x+2√7)=0 //x=√7/√3,,x=-2√7/√3
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2016-03-16T23:11:46+05:30
I think
3x^2+2root21x-root21x-14=0
root3x(root3x+2root7)-root7(root3x+2root7)=0
(root3x+root7)(root3x-root7)=0
x=-root7/root3,x=root7/root 3
hope it is correct

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