Question

$(-2b + 5)^2$

Explanation:

Step1: Apply square of sum formula

Recall $(x+y)^2=x^2+2xy+y^2$, let $x=-2b$, $y=5$.
$$(-2b+5)^2=(-2b)^2+2(-2b)(5)+5^2$$

Step2: Calculate each term

Compute squared and product terms.
$$(-2b)^2=4b^2,\ 2(-2b)(5)=-20b,\ 5^2=25$$

Step3: Combine all terms

Sum the calculated terms.
$$4b^2-20b+25$$

Answer:

$4b^2 - 20b + 25$