Try another version of this question Get help: Box 1: Enter your answer as a list of complex numbers in a+bi form separated with commas. Example: 2+5i,-3-4i
Find all zeros of `f(x)=9 x^3+15 x^2-29 x+21`. Enter the zeros separated by commas. Enter exact value, not decimal approximations.
Enter each value 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
Decimal values are not allowed `-3,2/3+sqrt(3)/3 i,2/3-sqrt(3)/3 i`