136!!!!!!!!!!!!!!!!!!!!!!

Question

136!!!!!!!!!!!!!!!!!!!!!!

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Answer 1

1)3x(3x+1)=9x^2+3x
3)xy(4x^3-y)=4x^4y-xy^2
5)3b^2a^3-ab^3=ab^2(3a^2-b)
2)2ab-ab^2=ab(2-b)
4)y^5x^2-3y^5=y^5(x^2-3)
6)28a^3b-4a^2b^3=4a^2b(7a-b)