Answer:
(x - 10)(x + 10)
Step-by-step explanation:
x² - 100 ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b)
Hence
x² - 100
= x² - 10² = (x - 10)(x + 10)
n=2
3n-7=3-2n
5n=10 (add 2n on both sides and also add 7 on both sides of the equal sign)
DUBS
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