(3y3+9y+27)-(-3y2)Multiply -3 by -1.3y3+9y+27+3y2Move 27.3y3+9y+3y2+27Move 9y.3y3+3y2+9y+27 Simplify (3y^3+9y+27)-(-3y^2) Solving MATH problems We can solve all math problems. Get help on the web or with our math app