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Simplify using Factorization: (65y3(50y298))/(26y2(5y+7))(65y^3(50y^2-98))/(26y^2(5y+7))

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Q. Simplify using Factorization: (65y3(50y298))/(26y2(5y+7))(65y^3(50y^2-98))/(26y^2(5y+7))
  1. Write Expression: Write down the expression that needs to be simplified.\newline65y3(50y298)26y2(5y+7)\frac{65y^3(50y^2 - 98)}{26y^2(5y + 7)}
  2. Factor Common Factors: Factor out the common factors in the numerator and the denominator.\newlineIn the numerator, 65y365y^3 is a common factor, and in the denominator, 26y226y^2 is a common factor. We can also notice that 65=13×565 = 13 \times 5 and 26=13×226 = 13 \times 2, so there is a common factor of 1313 in the numerator and denominator.
  3. Simplify Common Factors: Simplify the common factors between the numerator and the denominator.\newlineDivide both the numerator and the denominator by the common factors. We have:\newline6526=52\frac{65}{26} = \frac{5}{2} (since both are divisible by 1313)\newliney3y2=y\frac{y^3}{y^2} = y (since y3y^3 divided by y2y^2 is yy)\newlineNow the expression looks like this:\newline52y50y2985y+7\frac{5}{2} \cdot y \cdot \frac{50y^2 - 98}{5y + 7}
  4. Find Common Factors: Look for common factors in the remaining terms of the numerator and the denominator.\newlineWe can factor the numerator 50y29850y^2 - 98 by looking for a common factor of 5050 and 9898, which is 22. So we can write:\newline50y298=2(25y249)50y^2 - 98 = 2(25y^2 - 49)\newlineNotice that 25y24925y^2 - 49 is a difference of squares and can be factored further as (5y+7)(5y7)(5y + 7)(5y - 7).
  5. Rewrite with Factored Form: Rewrite the expression with the factored form of the numerator.\newlineNow the expression is:\newline(52)y2(5y+7)(5y7)/(5y+7)(\frac{5}{2}) \cdot y \cdot 2(5y + 7)(5y - 7) / (5y + 7)
  6. Cancel Common Factors: Cancel out the common factors in the numerator and the denominator.\newlineThe (5y+7)(5y + 7) term is present in both the numerator and the denominator, so they cancel each other out. We are left with:\newline(52)×y×2×(5y7)(\frac{5}{2}) \times y \times 2 \times (5y - 7)
  7. Simplify Remaining Expression: Simplify the remaining expression.\newlineThe 22 in the numerator and the 22 in the denominator cancel each other out, leaving us with:\newline5y×(5y7)5y \times (5y - 7)
  8. Multiply Remaining Terms: Multiply out the remaining terms. 5y×(5y7)=25y235y5y \times (5y - 7) = 25y^2 - 35y

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