Q. Divide. Write your answer in simplest form. 7d225d+20÷3d+23d−1
Rewrite as multiplication: Rewrite the division problem as a multiplication problem by taking the reciprocal of the second fraction.The original problem is: (25d+20)/(7d2)÷(3d−1)/(3d+2)We can rewrite this as: (25d+20)/(7d2)×(3d+2)/(3d−1)
Factor out common factor: Factor out the common factor in the numerator of the first fraction if possible.In the numerator of the first fraction, 25d+20, we can factor out a 5: 5(5d+4)The expression now looks like: (5(5d+4))/(7d2)×(3d+2)/(3d−1)
Multiply numerators and denominators: Multiply the numerators and the denominators of the two fractions.The numerators are (5(5d+4)) and (3d+2), and the denominators are (7d2) and (3d−1).Multiplying the numerators: (5(5d+4))(3d+2)Multiplying the denominators: (7d2)(3d−1)The expression now looks like: (7d2)(3d−1)(5(5d+4))(3d+2)
Simplify by expanding and canceling: Simplify the expression by expanding the numerators and denominators if possible and then canceling out common factors.Expanding the numerator: 5(5d+4)(3d+2)=5(15d2+10d+12d+8)=5(15d2+22d+8)Expanding the denominator: (7d2)(3d−1)=21d3−7d2The expression now looks like: 21d3−7d25(15d2+22d+8)
Check for common factors: Check for any common factors that can be canceled out from the numerator and the denominator.There are no common factors between the numerator 5(15d2+22d+8) and the denominator 21d3−7d2.Therefore, the expression is already in its simplest form.
Write final answer: Write the final answer.The simplest form of the expression is: (21d3−7d25(15d2+22d+8))
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