Bantu jwab semua isi cara mksii

1)
a]
Koefisien x^2 = 2
Koefisien y = - 4

b]
Koefisien a^2 = 1
Koefisien ab = 3
Koefisien b^3 = - 1

c]
Koefisien x = 4
Koefisien xy = 2
Koefisien y^2 = 1

2)
a] 5x + 4y + 7x - 11y
= 5x + 7x + 4y - 11y
= 12x - 7y

b] 2x - 3y - 10x + 12 y
= 2x - 10x - 3y + 12y
= - 8x + 9y

3)
a] (2x + 8) + (4x - 5 - 5y)
= 2x + 8 + 4x - 5 - 5y
= 2x + 4x + 8 - 5 - 5y
= 6x + 8 - 5 - 5y
= 6x + 3 - 5y

b] (3x + y) + (- 2x - 5y + 7)
= 3x + y - 2x - 5y + 7
= 3x - 2x + y - 5y + 7
= x - 4y + 7

Semoga bisa membantu.