Simplify: (3x - 4y) (x + 5) (2y + 2x)
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Answer:
=6x^3+30x^2-2x^2y-8xy^2-10xy-40y^2
Step-by-step explanation:
=(3x^2+15x-4xy-20y)2(y+x)
=2(3x^2y+15xy-4xy^2-20y^2+3X^3+15x^2-4x^2y-20xy)
=2(3x^3+15x^2-x^2y-4xy^2-5xy-20y^2)
=6x^3+30x^2-2x^2y-8xy^2-10xy-40y^2
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