Q. Simplify the following expression to simplest form using only positive exponents.(64x3y−18)−35Answer:
Apply Negative Exponent Rule: Apply the negative exponent rule to the entire expression.The negative exponent rule states that a−n=an1. We will apply this rule to the expression (64x3y−18)−35.
Distribute Exponent to Factors: Distribute the exponent to each factor inside the parentheses.When raising a power to a power, you multiply the exponents. Here, we have a product inside the parentheses, so we distribute the exponent to each factor.(64x3y−18)−(5)/(3)=64−(5)/(3)×x3×(−(5)/(3))×y−18×(−(5)/(3))
Simplify Each Factor: Simplify each factor separately.Now we simplify each factor by multiplying the exponents.64−(5)/(3)=645/31x3∗(−(5)/(3))=x−5y−18∗(−(5)/(3))=y30
Simplify 6435 Term: Simplify the 6435 term.64 is 43, so we can rewrite 6435 as (43)35. When raising a power to a power, we multiply the exponents.(43)35=43∗(35)=45
Calculate 45: Calculate 45.45=4×4×4×4×4=1024
Substitute 45: Substitute 45 back into the expression.Now we substitute 1024 for 45 in the expression from Step 3.1/(645/3)=1/1024
Combine Simplified Factors: Combine all the simplified factors.Now we combine all the simplified factors to get the final expression with positive exponents.10241×x−5×y30
Rewrite x−5: Rewrite x−5 with a positive exponent.To write x−5 with a positive exponent, we use the rule a−n=an1.x−5=x51
Combine into Single Fraction: Combine all terms into a single fraction.Now we combine all terms into a single fraction to get the final answer.1024×x51×y30
More problems from Multiplication with rational exponents