HELP PLEASE IM DESPERATE FIND ALL POSSIBLE VALUES OF X!

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Hassan bought a package of tofu. the temperature of the tofu was 14° celsius when hassan put the package into the freezer. he left the tofu in the freezer until it reached –19° celsius. which expressions explain how to find the change in temperature, in degrees celsius, of the package of tofu? select three that apply.