ex 2
A = x² - 64 = x² - 8² = (x+8) (x-8)
B = (2x)² - 7² = (2x+7) (2x-7)
C = x² - 6² = x² - 36
D = (2x)² - 5² = 4x² - 25
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ex 2
A = x² - 64 = x² - 8² = (x+8) (x-8)
B = (2x)² - 7² = (2x+7) (2x-7)
C = x² - 6² = x² - 36
D = (2x)² - 5² = 4x² - 25