What is the limit as x approaches -2 of the sqrt(-3x^3 + 7x^2)? and what are the limit laws used to get the solution?

Haha for that one, all that you have to do is plug in -2 into the equation. So you should end up with: sqrt(-3*-8 + 7*4) which ends up as sqrt(52). That can be simplified to 2*sqrt(15).

For this one, there really are no laws involved, you just plug in the value of x because the equation is continuous. :).

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