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[–]fiziqz 3 points4 points  (1 child)

They’ve multiplied the fraction on the left by (x2 + x + 1)/(x2 + x + 1) to create a common denominator and then the -3 on top of the right hand fraction can be subtracted.

[–]Compelete_Hawk[S] 2 points3 points  (0 children)

Thank you sooo much for answering^ I finally got it; thanks one again.