Question

CAUCULE.

(2X+Y-3)POTENCIA DE DOIS SSOBRE O PARENTESSES

Answer 1

  
 

(2X+Y-3)POTENCIA DE DOIS SSOBRE O PARENTESSES

(2X+Y-3)² = (2X+Y-3)(2X+Y-3) = (2x)² +2xy-6x+2xy+y²-3y- 6x-3y+9

==> 4x² + 4xy - 12x + y² -6y + 9