Question

(13 + x)(13 - X
$(13 + x)(13 - x)$
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Answer 1

- x² + 169

Step-by-step explanation:

(13 + x)(13 - x)

=> (13)² - (x)²...[by the formula (a+b)(a-b) = a² - b²]

=> 13² - x²

=> 169 - x²

=> - x² + 169

Hence the answer is - x² + 169.

hope it helps.