Question

algebraic equation
$3(x + 3)x + 2(x + 4) + 1$
answer me
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Answer 1

Answer:

3x^{2}+11x+9

Step-by-step explanation:

3(x+3)x+2(x+4)+1

\left(3x+9\right)x+2\left(x+4\right)+1

3x^{2}+9x+2\left(x+4\right)+1

3x^{2}+9x+2\left(x+4\right)+1

3x^{2}+9x+2x+8+1

3x^{2}+11x+8+1

3x^{2}+11x+9