Final Answer
$x^2+6x+9$
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Step-by-step Solution
Problem to solve:
$\left(x+3\right)^2$
Specify the solving method
1
A binomial squared (sum) is equal to the square of the first term, plus the double product of the first by the second, plus the square of the second term. In other words: $(a+b)^2=a^2+2ab+b^2$
$x^2+6x+9$
Final Answer
$x^2+6x+9$