Question

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

Explanation:

Step1: Rewrite as product

$(x+3)^2 = (x+3)(x+3)$

Step2: Apply distributive property

$x(x+3) + 3(x+3) = x^2 + 3x + 3x + 9$

Step3: Combine like terms

$x^2 + (3x+3x) + 9 = x^2 + 6x + 9$

Answer:

$x^2 + 6x + 9$