Evaluate the following limits. If needed, enter oo for ` \infty ` and -oo for ` -\infty `.
(a)` \lim_(x rarr \infty) ( 13 x^2 + 17 x^3 ) = `
(b)` \lim_(x rarr -\infty) ( 13 x^2 + 17 x^3 ) = `
Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
Box 2: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity