Thread: Problem on Limits

Can anyone give guidance and point me in the right direction for this problem? I've tried a couple approaches that have lead to dead ends and am not sure what to do. Thanks.

(SqRT(10x+9)-SqRT(79))/x-7

Limit x->7

Originally Posted by JP22

Can anyone give guidance and point me in the right direction for this problem? I've tried a couple approaches that have lead to dead ends and am not sure what to do. Thanks.

(SqRT(10x+9)-SqRT(79))/x-7

Limit x->7

start by multiplying the numerator and denominator by

I think I figured it out. Thanks.