Question

The product shown is a difference of squares. What is the missing constant term in the second factor?

(–5x – 3)(–5x +?

Answer 1

Answer: (–5x – 3)(–5x +3)

Explanation:

3 is the answer.

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Answer 2

Difference of two squares is of the form (a + b)(a - b) or vice-versa. Here, a = -5x and b = 3.
(-5x - 3)(-5x + 3)
Answer: 3