which expression is a difference of squares with a factor of 2x + 5?\n4x² + 10\n4x² - 10\n4x² + 25\n4x² - 25

Explanation:

Step1: Recall difference - of - squares formula

The difference - of - squares formula is $a^{2}-b^{2}=(a + b)(a - b)$.

Step2: Identify $a$ and $b$ given a factor

If one factor is $2x + 5$, then $a=2x$ and $b = 5$. The difference - of - squares expression is $(2x)^{2}-5^{2}$.

Step3: Simplify the expression

$(2x)^{2}-5^{2}=4x^{2}-25$.

Answer:

$4x^{2}-25$