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Find the sum of x^2 + 3x and 2x^2 + 9x + 5
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Find the sum of x^2 + 3x and 2x^2 + 9x + 5

User Sagar Makhija
by
7.0k points

1 Answer

2 votes

Answer:


3 {x}^(2) + 12x + 5

Explanation:


(x^2 + 3x) + (2x^2 + 9x + 5) \\ \\ = x^2 + 3x + 2x^2 + 9x + 5 \\ \\ = {x}^(2) + 2 {x}^(2) + 3x + 9x + 5 \\ \\ = 3 {x}^(2) + 12x + 5

User Manisha Bano
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