Cubic Identities for 9th Graders Flashcards
1
Q
a3+b3
A
(a+b)(a2-ab+b2)
2
Q
(a+b)3
A
a3+b3+3ab(a+b)
3
Q
(a+b+c)2
A
a2+b2+c2+2(ab+bc+ca)
4
Q
a3+b3+c3-3abc
A
(a+b+c)(a2+b2+c2-ab-bc-ca)
a3+b3
(a+b)(a2-ab+b2)
(a+b)3
a3+b3+3ab(a+b)
(a+b+c)2
a2+b2+c2+2(ab+bc+ca)
a3+b3+c3-3abc
(a+b+c)(a2+b2+c2-ab-bc-ca)