Simplify. Assume all variables are positive.b43⋅b47b47Write your answer in the form A or BA, where A and B are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.______
Q. Simplify. Assume all variables are positive.b43⋅b47b47Write your answer in the form A or BA, where A and B are constants or variable expressions that have no variables in common. All exponents in your answer should be positive.______
Identify Given Expression: Identify the given expression and the properties of exponents that will be used to simplify it.The expression is b47/(b43∗b47). We will use the properties of exponents, specifically the quotient rule (am/an=am−n) and the product rule (am∗an=am+n).
Apply Product Rule: Apply the product rule to the denominator of the expression.According to the product rule, when multiplying two exponents with the same base, you add the exponents: b3/4×b7/4=b3/4+7/4.
Calculate Sum of Exponents: Calculate the sum of the exponents in the denominator.Adding the exponents: 43+47=410, which simplifies to 25. So, b43×b47=b25.
Rewrite with Simplified Denominator: Rewrite the original expression with the simplified denominator.The expression now is b47/b25.
Apply Quotient Rule: Apply the quotient rule to simplify the expression.According to the quotient rule, when dividing two exponents with the same base, you subtract the exponents: b47/b25=b47−25.
Convert Exponents: Convert the exponents to have a common denominator before subtracting.The common denominator for 4 and 2 is 4. Convert 25 to 410 so that both exponents have the same denominator: b47−410.
Calculate Difference of Exponents: Calculate the difference of the exponents.Subtracting the exponents: 47−410=−43. So, b47/b25=b−43.
Rewrite as Reciprocal: Since negative exponents indicate the reciprocal, rewrite b−3/4 as 1/b3/4. The expression b−3/4 is equivalent to 1/b3/4 according to the negative exponent rule.
More problems from Simplify expressions involving rational exponents