Question Simplify the expression x3−40x2 Evaluate x3−5x2×8Solution x3−40x2 Show Solution Factor the expression x2(x−40) Evaluate x3−5x2×8Multiply the terms x3−40x2Rewrite the expression x2×x−x2×40Solution x2(x−40) Show Solution Find the roots x1=0,x2=40 Evaluate x3−5x2×8To find the roots of the expression,set the expression equal to 0 x3−5x2×8=0Multiply the terms x3−40x2=0Factor the expression x2(x−40)=0Separate the equation into 2 possible cases x2=0x−40=0The only way a power can be 0 is when the base equals 0 x=0x−40=0Solve the equation More Steps Evaluate x−40=0Move the constant to the right-hand side and change its sign x=0+40Removing 0 doesn't change the value,so remove it from the expression x=40 x=0x=40Solution x1=0,x2=40 Show Solution