Question

Tolong bantu aku dong no 3-7 kalo bisa pakai cara kerja yah..pliss kerjakan 1 atau 3 no gapapa kok..yah pliss..

Answer 1

3. 7x - 4y + 6 - 4x + y - 6
= 7x - 4x - 4y + y + 6 - 6
= 3x - 3y

4. (5ab + 2bc - d) + (3ab - 2bc +6d)
= 5ab + 3ab + 2bc - 2bc - d + 6d
= 8ab + 5d

5. (8x^6 y^4 : 4x^4 y^4)^3
= (2x^2 y^1)^3
= 2x^6 y^3

6. (2x + 3y)(x - 4y)
= (2x . x) + (2x . (-4y)) + (3y . x) + (3y . (-4y))
= 2x² + (-8xy) + 3xy + (-12y²)
= 2x² - 5xy - 12y²

7. 16x² - 64y²
= (4x + 8y)(4x - 8y)

Answer 2

Semoga bisa membantu dan maaf ada yang belum dijawab