Question

question
factor the expression completely.
40x² - 48
answer attempt 1 out of 2
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Explanation:

Step1: Find GCF of 40 and 48

The greatest common factor (GCF) of 40 and 48 is 8. So we factor out 8 from the expression.
$40x^2 - 48 = 8(5x^2 - 6)$

Step2: Check if further factoring is possible

The quadratic $5x^2 - 6$ is a difference of squares? No, because 5 is not a perfect square. So we can't factor it further over the real numbers (if we consider integers, it's already factored).

Answer:

$8(5x^2 - 6)$