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Simplify the expression completely if possible.

(x^(2)-11 x+28)/(x^(2)-14 x+49)
Answer:

Simplify the expression completely if possible.\newlinex211x+28x214x+49 \frac{x^{2}-11 x+28}{x^{2}-14 x+49} \newlineAnswer:

Full solution

Q. Simplify the expression completely if possible.\newlinex211x+28x214x+49 \frac{x^{2}-11 x+28}{x^{2}-14 x+49} \newlineAnswer:
  1. Identify Expressions: Identify the expressions in the numerator and the denominator and check if they can be factored.\newlineThe numerator is a quadratic expression x211x+28x^2 - 11x + 28, and the denominator is also a quadratic expression x214x+49x^2 - 14x + 49.
  2. Factor Numerator: Factor the numerator x211x+28x^2 - 11x + 28. We are looking for two numbers that multiply to 2828 and add up to 11-11. These numbers are 4-4 and 7-7. So, x211x+28x^2 - 11x + 28 can be factored as (x4)(x7)(x - 4)(x - 7).
  3. Factor Denominator: Factor the denominator x214x+49x^2 - 14x + 49. We are looking for two numbers that multiply to 4949 and add up to 14-14. These numbers are 7-7 and 7-7. So, x214x+49x^2 - 14x + 49 can be factored as (x7)(x7)(x - 7)(x - 7) or (x7)2(x - 7)^2.
  4. Write Factored Form: Write the factored form of the original expression: (x4)(x7)(x7)(x7)\frac{(x - 4)(x - 7)}{(x - 7)(x - 7)}.
  5. Cancel Common Factors: Cancel out the common factors in the numerator and the denominator. The (x7)(x - 7) term is common to both and can be canceled out.\newlineAfter canceling, we are left with x4x7\frac{x - 4}{x - 7}.
  6. Check Further Simplifications: Check for any further simplifications. Since (x4)(x - 4) and (x7)(x - 7) are both linear and do not have any common factors, the expression cannot be simplified further.\newlineThe final simplified expression is (x4)/(x7)(x - 4) / (x - 7).

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