No a,g,k,l aja ya tolong pakai cara

a) 2x + 3y(4x - 5y) + 7x - 1
= 2x + 12xy - 15y² + 7x - 1
= 9x +12xy - 15y² - 1

g) (4a²b³/a³b)²
= 16a⁴b^6 / a^6b²
= 16a-2b⁴
= 16b⁴/a²

k) (x + y)(2x - y)
= 2x² + 2xy - xy - y²
= 2x² - xy - y²

l) (3x - 7)(4x + 8)
= 12x² - 28x + 24x - 56
= 12x² - 4x - 56