No. 11
(3x^2 + 4x - 32) / (x+4)
= (3x - 8 )( x + 4) / (x+4)
= 3x - 8
Jawab B
No. 13
hasil dari : (2x-y)³
= ((2x-y)²(2x-y)
= (4x^2 - 4xy + y^2 ) (2x - y)
= 8x^3 -8x^2y + 2xy^2 - 4x^2y + 4xy^2 - y^3
= 8x^3 - 12x^2y + 6xy^2 - y^3
Jawab C
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No. 11
(3x^2 + 4x - 32) / (x+4)
= (3x - 8 )( x + 4) / (x+4)
= 3x - 8
Jawab B
No. 13
hasil dari : (2x-y)³
= ((2x-y)²(2x-y)
= (4x^2 - 4xy + y^2 ) (2x - y)
= 8x^3 -8x^2y + 2xy^2 - 4x^2y + 4xy^2 - y^3
= 8x^3 - 12x^2y + 6xy^2 - y^3
Jawab C
semoga membantu