а)x²-y² =(x-y)(x+y)
б) c²-z² = (c-z)(c+z)
в)16-b²=4²-b² = (4-b)(4+b)
г)25/49-p² = (5/7)² - p² = (5/7-p)(5/7+p)
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(x-z)(c+z)
(4-b)(4+b)
(5/7-p)(5/7+p)
Verified answer
а)x²-y² =(x-y)(x+y)
б) c²-z² = (c-z)(c+z)
в)16-b²=4²-b² = (4-b)(4+b)
г)25/49-p² = (5/7)² - p² = (5/7-p)(5/7+p)