Q. Simplify the expression completely if possible.x2+5x+4x2−16Answer:
Factorize Numerator and Denominator: Factor the numerator and denominator if possible.The numerator x2−16 is a difference of squares and can be factored into (x+4)(x−4).The denominator x2+5x+4 can be factored by finding two numbers that multiply to 4 and add to 5. These numbers are 1 and 4.So, the denominator factors into (x+1)(x+4).
Write Expression with Factors: Write the expression with the factors.The factored form of the expression is:(x+1)(x+4)(x+4)(x−4)
Cancel Common Factors: Cancel out the common factors.The (x+4) term is present in both the numerator and the denominator, so they cancel each other out.This leaves us with:x+1x−4
Check Further Simplification: Check if further simplification is possible.The expression (x−4)/(x+1) cannot be simplified further as there are no common factors left.
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