t^2-8t-12=0 please factorise this
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here is the solution. hope it helps.
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t=8+(64+48)^1/2 /2 ,8-(64+48)^1/2
=4+2(7)^1/2,4-2(7)^1/2
=4+2(7)^1/2,4-2(7)^1/2
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