you would solve by grouping the first two terms together and the last two terms together. (x^3+x^2)(+(4x+4)=0. you would factor each one and get x^2(x+1)+ 4(x+1)=0. the final outcome is (x^2+4)(x+1)=0. this is how you find the roots of this equation
Two trains leave a town at the same time heading in opposite directions. One train is traveling 12 mph faster than the other. After two hours, they are 232 miles apart. What is the average speed of each train?
