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Verified answer
1.5x(3x - 2y) + 2(10y-5x-3)15x^2-10xy+20y-10x-6
2.9(11a+4y) - 6(7-5a)
99a+36y-42+30a
129a+36y-42
Verified answer
Matematika SMP→→ Aljabar ←←
Pembahasan :
1|| 5x(3x - 2y) + 2(10y - 5x - 3)
= 15x² - 10xy + 20y - 10x - 6
= 15x² - 10xy - 10x + 20y - 6
2|| 9(11a + 4y) - 6(7 - 5a)
= 99a + 36y - 42 + 30a
= 129a + 36y - 42