Răspunsuri

  • Utilizator Brainly
2014-10-11T13:03:52+03:00
A² -1=(a+1)(a-1)

a² - 4=(a+2)(a-2)

a² - 25-(a+5)(a-5)

a² -9b²=(a+3b)(1-3b)

a⁴-a²=(a²+a)(a²-a)

a⁵-9a³=(a³+3a²)(a³-3a²)









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