Question

algebra 1-23511200310d101
6-3: mathxl for school: additional practice
multiply.
$(11x + y)^2$
$(11x + y)^2 = \square$
(simplify your answer.)

Explanation:

Step1: Apply square of sum formula

Recall the formula $(a+b)^2 = a^2 + 2ab + b^2$, where $a=11x$, $b=y$.

Step2: Calculate $a^2$

$a^2 = (11x)^2 = 121x^2$

Step3: Calculate $2ab$

$2ab = 2 \cdot 11x \cdot y = 22xy$

Step4: Calculate $b^2$

$b^2 = y^2$

Step5: Combine all terms

Add the results from Steps 2-4.

Answer:

$121x^2 + 22xy + y^2$