Task/25769547
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Lim(49 -x²) / (x+7) =Lim(7 -x)(7+x) /(x+7) = Lim(7 -x) =7 -(-7) = 14 .
x→ -7 . . . . . . . . . . . x→ -7 . . . . . . . . . . . . . x→ -7
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Lim(x² -121) / (x-11) =Lim(x -11)(x+11) / (x-11) = Lim(x +11) =11+11 =22 .
x→ 11 . . . . . . . . . . . x→11 . . . . . . . . . . . . . . . . . x→11