Question Simplify the expression 21x3−2 Evaluate 21x2×x−2Solution More Steps Evaluate 21x2×xMultiply the terms with the same base by adding their exponents 21x2+1Add the numbers 21x3 21x3−2 Show Solution Factor the expression 21(x3−4) Evaluate 21x2×x−2Multiply More Steps Evaluate 21x2×xMultiply the terms with the same base by adding their exponents 21x2+1Add the numbers 21x3 21x3−2Solution 21(x3−4) Show Solution Find the roots x=34Alternative Form x≈1.587401 Evaluate 21(x2)x−2To find the roots of the expression,set the expression equal to 0 21(x2)x−2=0Calculate 21x2×x−2=0Multiply More Steps Multiply the terms 21x2×xMultiply the terms with the same base by adding their exponents 21x2+1Add the numbers 21x3 21x3−2=0Move the constant to the right-hand side and change its sign 21x3=0+2Removing 0 doesn't change the value,so remove it from the expression 21x3=2Multiply by the reciprocal 21x3×2=2×2Multiply x3=2×2Multiply x3=4Take the 3-th root on both sides of the equation 3x3=34Solution x=34Alternative Form x≈1.587401 Show Solution