Q. Express the following fraction in simplest form, only using positive exponents.12a(3a−1t3)−2Answer:
Apply Negative Exponent Rule: Apply the negative exponent rule to the numerator.The negative exponent rule states that x−n=xn1. We will apply this rule to the entire numerator.((3a−1t3)−2)=(3a−1t3)21
Simplify Expression Inside Parentheses: Simplify the expression inside the parentheses before applying the exponent.We need to convert the negative exponent inside the parentheses to a positive exponent by moving it to the denominator.(1/(3a−1t3)2)=(1/(3∗(1/a)∗t3)2)
Continue Simplifying Inside Parentheses: Continue simplifying the expression inside the parentheses.Now we can simplify the expression inside the parentheses by multiplying the terms.(1/(3∗(1/a)∗t3)2)=(1/(3/a∗t3)2)
Apply Exponent to Terms: Apply the exponent to the terms inside the parentheses.When we raise a product to an exponent, we raise each factor to that exponent.(1/(3/a∗t3)2)=(1/((32/a2)∗t6))
Simplify Expression After Exponent: Simplify the expression after applying the exponent.Now we can simplify the expression by calculating the exponent of 3 and moving the a term to the numerator.(1/((32/a2)∗t6))=(1/(9/a2∗t6))
Multiply by Reciprocal: Multiply the fraction by the reciprocal of the denominator.To get rid of the fraction in the denominator, we multiply by the reciprocal.(1/(9/a2⋅t6))=(a2/(9⋅t6))
Divide by Denominator: Divide the entire expression by the denominator outside the parentheses, which is 12a. Now we divide the expression we have by 12a. 9t6a2/12a = 9t6⋅12aa2
Simplify by Canceling Factors: Simplify the expression by canceling out common factors. We can cancel out an 'a' from the numerator and denominator and simplify the constants. (a2/(9⋅t6⋅12a))=(a/(9⋅t6⋅12))
Simplify Constants in Denominator: Simplify the constants in the denominator. Now we simplify the constants 9 and 12 by dividing them. (a/(9⋅t6⋅12))=(a/(108⋅t6))
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