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## Main Question or Discussion Point

How do you solve 4a

I know there are general formulae, but I'm not sure how to use them:

a

a

a

^{2}- 8ab + 3b^{2}=0?I know there are general formulae, but I'm not sure how to use them:

a

^{2}-2ab+b^^{2}= (a-b)^{2}a

^{2}+2ab+b^^{2}= (a+b)^{2}a

^{2}-b^{2}= (a+b)(a-b)