Question Simplify the expression 10x2−168x3 Evaluate 10x2−84x3×2Solution 10x2−168x3 Show Solution Factor the expression 2x2(5−84x) Evaluate 10x2−84x3×2Multiply the terms 10x2−168x3Rewrite the expression 2x2×5−2x2×84xSolution 2x2(5−84x) Show Solution Find the roots x1=0,x2=845Alternative Form x1=0,x2=0.059˙52380˙ Evaluate 10x2−84x3×2To find the roots of the expression,set the expression equal to 0 10x2−84x3×2=0Multiply the terms 10x2−168x3=0Factor the expression 2x2(5−84x)=0Divide both sides x2(5−84x)=0Separate the equation into 2 possible cases x2=05−84x=0The only way a power can be 0 is when the base equals 0 x=05−84x=0Solve the equation More Steps Evaluate 5−84x=0Move the constant to the right-hand side and change its sign −84x=0−5Removing 0 doesn't change the value,so remove it from the expression −84x=−5Change the signs on both sides of the equation 84x=5Divide both sides 8484x=845Divide the numbers x=845 x=0x=845Solution x1=0,x2=845Alternative Form x1=0,x2=0.059˙52380˙ Show Solution