Question

rewrite without parentheses and simplify.
$(y + 5)^2$

Explanation:

Step1: Expand using square of sum rule

Recall that $(a+b)^2 = a^2 + 2ab + b^2$. Here $a=y$, $b=5$.
$$(y+5)^2 = y^2 + 2(y)(5) + 5^2$$

Step2: Calculate each term

Simplify the products and exponent:
$$y^2 + 10y + 25$$

Answer:

$y^2 + 10y + 25$