фсу Flashcards

1
Q

(x + y + z)^2

A

x2 + y2 +x2 + 2(xy+xz+yz)

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2
Q

(x + y)^3

A

x3 + 3x2y + 3xy2 + y3

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3
Q

(x - y)^3

A

x3 = 3x2y + 3xy2 - y3

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4
Q

x3 - y3

A

(x-y)(x2 + xy + y3)

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5
Q

x3 + y3

A

(x+y)(x2 - xy + y3)

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6
Q

x3 + y3 + z3 - 3xyz

A

(x+y+z)(x2 + y2 + z2 - xy - xz - zy)

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