How do you find the product of $(4a+7)^2$ ?

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Answer 1 · 2017-07-14T13:17:42

See a solution process below:

We can use this special rule of a quadratic to simplify this expression:

$(x + y)^2 = x^2 + 2xy + y^2$

Substituting:

$4a$ for $x$ and $7$ for $y$ gives:

$(4a + 7)^2 =>$

$(4a)^2 + (2 * 4a * 7) + 7^2 =>$

$16a^2 + 56a + 49$

How do you find the product of (4a+7)^2(4a+7)^2?