Q. Perform the following operation and express in simplest form.x2+11x+186x+12÷x2+6x−27x+4Answer:
Identify and Rewrite Division: Identify the given expression and rewrite the division as multiplication by the reciprocal of the second fraction.(6x+12)/(x2+11x+18)÷(x+4)/(x2+6x−27)=(6x+12)/(x2+11x+18)×(x2+6x−27)/(x+4)
Factor First Fraction: Factor the numerator and denominator of the first fraction. 6x+12 can be factored as 6(x+2).x2+11x+18 can be factored as (x+9)(x+2).The first fraction becomes (x+9)(x+2)6(x+2).
Factor Second Fraction: Factor the numerator and denominator of the second fraction. x2+6x−27 can be factored as (x+9)(x−3). The second fraction becomes (x+9)(x−3)/(x+4).
Combine and Cancel Factors: Combine the factored forms and cancel out common factors.(6(x+2)/((x+9)(x+2)))×((x+9)(x−3)/(x+4))=(x+9)(x+4)6(x+9)(x−3)Here, (x+2) and (x+9) cancel out from the numerator and denominator.
Simplify Remaining Expression: Simplify the remaining expression.After canceling, we are left with x+46(x−3).
Check for Further Simplification: Check for any further simplification or common factors. There are no common factors left, and the expression is in its simplest form.
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