Question Simplify the expression 3a3−63 Evaluate 3a2×a−63Solution More Steps Evaluate 3a2×aMultiply the terms with the same base by adding their exponents 3a2+1Add the numbers 3a3 3a3−63 Show Solution Factor the expression 3(a3−21) Evaluate 3a2×a−63Multiply More Steps Evaluate 3a2×aMultiply the terms with the same base by adding their exponents 3a2+1Add the numbers 3a3 3a3−63Solution 3(a3−21) Show Solution Find the roots a=321Alternative Form a≈2.758924 Evaluate 3a2×a−63To find the roots of the expression,set the expression equal to 0 3a2×a−63=0Multiply More Steps Multiply the terms 3a2×aMultiply the terms with the same base by adding their exponents 3a2+1Add the numbers 3a3 3a3−63=0Move the constant to the right-hand side and change its sign 3a3=0+63Removing 0 doesn't change the value,so remove it from the expression 3a3=63Divide both sides 33a3=363Divide the numbers a3=363Divide the numbers More Steps Evaluate 363Reduce the numbers 121Calculate 21 a3=21Take the 3-th root on both sides of the equation 3a3=321Solution a=321Alternative Form a≈2.758924 Show Solution