Matematika

Pertanyaan

2) 2(x+y)^2 + (x+y)-6
3) 2(x+y)^2 -9(x+y)-5
4) 3(x+y)^2 -13(x+y)+4


no 2,3,4 aja
tolong yaa
2)    2(x+y)^2 + (x+y)-6 3)    2(x+y)^2 -9(x+y)-5 4)    3(x+y)^2 -13(x+y)+4 no 2,3,4 aja tolong yaa

1 Jawaban

  • 2) 2 (x + y)² + (x + y) - 6
    = (2x + 2y)² + (x + y) - 6
    = (2x + 2y) (2x + 2y) + (x + y) - 6
    = (4x² + 4xy + 4xy + 4y²) + (x + y) - 6
    = 4x² + 8xy + 4y² + x + y - 6