Q. Fully simplify the expression below and write your answer as a single fraction.x2+12x+35x3−25x⋅x4+9x3x+7Answer:
Identify factors: Identify the factors in the numerator and denominator that can be factored further.The numerator x3−25x can be factored out by taking x common, resulting in x(x2−25).The denominator x2+12x+35 can be factored into (x+5)(x+7).The second fraction's numerator is already simplified as x+7.The second fraction's denominator x4+9x3 can be factored by taking x3 common, resulting in x3(x+9).
Factor numerator and denominator: Factor the expression x2−25 in the numerator, which is a difference of squares.x2−25=(x+5)(x−5).Now the expression becomes (x+5)(x+7)x(x+5)(x−5)×x3(x+9)(x+7).
Factor expression: Cancel out the common factors in the numerator and the denominator.The (x+5) in the numerator cancels with the (x+5) in the denominator.The (x+7) in the numerator cancels with the (x+7) in the denominator.We are left with x3(x+9)x(x−5).
Cancel common factors: Simplify the expression by canceling the common x terms.One x in the numerator cancels with one x in the denominator, leaving us with (x−5)/x2(x+9).
Simplify expression: Write the final simplified expression.The fully simplified expression is (x−5)/(x2(x+9)).
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