6.

Factor the expression.

k2 – 16h2

(k + 4h)(k – 4h)

(k + 4h)(k + 4h)

(k – 4h2)(k + 4)

h2(k + 4)(k – 4)

1 answer

To factor the expression \( k^2 - 16h^2 \), we recognize it as a difference of squares. The difference of squares can be factored using the formula:

\[ a^2 - b^2 = (a + b)(a - b) \]

In the given expression, we have:

\[ k^2 - 16h^2 \]

Here, \( a = k \) and \( b = 4h \), so we can rewrite the expression as:

\[ k^2 - (4h)^2 \]

Using the difference of squares formula, we factor it as:

\[ (k + 4h)(k - 4h) \]

So the correct factorization of \(k^2 - 16h^2\) is:

\[ (k + 4h)(k - 4h) \]

Therefore, the correct option is:

\[ (k + 4h)(k – 4h) \]