А. f (a, b, c) = 2a² + 2b² – 2ab – 2bc + 2ac + 2c²

В. f (a, b, c) = b² – ab – bc + ac

C. f (a, b, c) = 2b² – 2ab – 2bc + 2ac

D. f (a, b, c) = 2a² + 2b² – 2ab – 2bc + 2ac

E. f (a, b, c) = 2b² – 2ab – 2bc – 2ac

А. f (x, y, z) = 10y³z – 3y³z² + 4x²y²z² + 2x² + z

В. f (x, y, z) = 4x²y²z² + 2x² – 3y³z² + 10y³z + z

C. f (x, y, z) = 10y³z + 4x²y²z² + 2x² – 3y³z² + z

D. f (x, y, z) = 4x²y²z² + 10y³z + 2x² – 3y³z² + z

E. f (x, y, z) = 2x² + 4x²y²z² – 3y³z² + 10y³z + z

A. –12

B. 2

C. 7

D. –2

E. 13

 $a^2+\sqrt{2a^3}+\frac{2}{3}^{a^2}-\sqrt{3}$  

 $x^2+xy^3+5z-xyz$  

 $t^2+3t^3+\frac{2}{t}-4$  

 $y^3-4xy^3-4$  

 $\left(b+1\right)\left(b-2\right)+b^{-3}$  

A. a=4; b=4

B. a=12; b=4

C. a= -8; b=4

D. a=6; b=4

E. a=8; b=4

A. (x² – 9)²

B. (x² – 3) (x² + 3)

C. (x – 3)² (x + 3)²

D. (x² – 9) (x² + 9)

E. (x – 9)² (x + 9)²

A. (x – 2)(x²+x-1), x=2

C. (x – 1)(x²+x+2), x=1

D. (x + 2)(x²+x-1), x= -2

E. (x – 2)(x²+x+1), x=2

B. (x + 1)(x²+x-2), x= -1

A. Q(x)= 3x² + 15x + 30

B. Q(x)= 2x² – 17x + 30

C. Q(x)= 4x² + 12x – 30

D. Q(x)= 2x² + 17x – 30

E. Q(x)= 3x² – 17x + 30