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a) 6(a² +2b)-3(6b-2a² )
b) 8(3b-a² )-3(5b-2a² )
a) 6(a²+2b)-3(6b-2a²)=6a²+12b-18b+6a²=12a²-6b
b) 8(3b-a²)-3(5b-2a²)=24b-8a²-15b+6a²=9b-2a²
a) 6a^2+12b-18b+6a^2= 12a^2-6b
b) 24b-8a^2-15b+6a^2= 9b-2a^2
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a) 6(a²+2b)-3(6b-2a²)=6a²+12b-18b+6a²=12a²-6b
b) 8(3b-a²)-3(5b-2a²)=24b-8a²-15b+6a²=9b-2a²
a) 6a^2+12b-18b+6a^2= 12a^2-6b
b) 24b-8a^2-15b+6a^2= 9b-2a^2