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Add: x^2+6x+2/5x+15 + x+10/5x+15 1. Rewrite the expression as a single fraction

2. Combine like terms
3.Simplify

2 Answers

3 votes

Answer:

(x+4)/5

Explanation:

User Adiono
by
4.3k points
9 votes

Answer:

the simplified expression is
(x+4)/(5)

Explanation:

Given;


(x^2 + 6x + 2)/(5x + 15) + (x+ 10)/(5x+ 15)

1. Rewrite the expression as a single fraction as follows;


(x^2 + 6x + 2)/(5x + 15) + (x+ 10)/(5x+ 15) = \frac{x^2 + 6x + 2 \ + \ {x+ 10} }{5x + 15} = (x^2 + 7x + 12)/(5x + 15)

2. By combining like terms we had
(x^2 + 7x + 12)/(5x + 15)

3. The expression is simplified as follows;

Factorize the numerator and denominator;


(x^2 + 7x + 12)/(5x + 15) = (x^2 + 3x + 4x + 12)/(5(x + 3)) = (x(x + 3) + 4(x + 3))/(5(x + 3)) = ((x + 3)(x + 4))/(5(x + 3)) = (x + 4)/(5)

Therefore, the simplified expression is
(x+4)/(5)

User TheUg
by
4.3k points