Q. Fully simplify the expression below and write your answer as a single fraction.x2+9x+18x+6⋅x3−11x2+28xx3−x2−12xAnswer:
Factor Polynomials: First, factor the polynomials in the numerators and denominators where possible.The denominator x2+9x+18 can be factored into (x+3)(x+6).The numerator x3−x2−12x can be factored by taking out a common factor of x, resulting in x(x2−x−12). Further factoring the quadratic gives x(x−4)(x+3).The denominator x3−11x2+28x can be factored by taking out a common factor of x, resulting in x(x2−11x+28). Further factoring the quadratic gives x(x−4)(x−7).
Rewrite with Factored Forms: Now, we rewrite the original expression with the factored forms: ((x+3)(x+6)x+6)×(x(x−4)(x−7)x(x−4)(x+3)).
Cancel Common Factors: Next, we cancel out the common factors in the numerator and the denominator. The (x+6) terms cancel each other out, as do the (x+3) terms and the x terms. The (x−4) terms also cancel each other out. This leaves us with (x−7)1.
Final Simplification: The expression is now fully simplified, and no further simplification is possible. The final answer is (x−7)1.
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