Question Simplify the expression 81b4−6b Evaluate b4×81−6bSolution 81b4−6b Show Solution Factor the expression 3b(27b3−2) Evaluate b4×81−6bUse the commutative property to reorder the terms 81b4−6bRewrite the expression 3b×27b3−3b×2Solution 3b(27b3−2) Show Solution Find the roots b1=0,b2=332Alternative Form b1=0,b2≈0.419974 Evaluate b4×81−6bTo find the roots of the expression,set the expression equal to 0 b4×81−6b=0Use the commutative property to reorder the terms 81b4−6b=0Factor the expression 3b(27b3−2)=0Divide both sides b(27b3−2)=0Separate the equation into 2 possible cases b=027b3−2=0Solve the equation More Steps Evaluate 27b3−2=0Move the constant to the right-hand side and change its sign 27b3=0+2Removing 0 doesn't change the value,so remove it from the expression 27b3=2Divide both sides 2727b3=272Divide the numbers b3=272Take the 3-th root on both sides of the equation 3b3=3272Calculate b=3272Simplify the root More Steps Evaluate 3272To take a root of a fraction,take the root of the numerator and denominator separately 32732Simplify the radical expression 332 b=332 b=0b=332Solution b1=0,b2=332Alternative Form b1=0,b2≈0.419974 Show Solution