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(X+4y)(2x+y-9) using distributive property
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(X+4y)(2x+y-9) using distributive property

User Alfe
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You multiply x by (2x+y-9) and then 4y by (2x+y-9). You should then add both of these up and get 2x^2+xy-9x + 8xy+4y^2-36y. Your final answer should be 2x^2+4y^2+9xy-9x-36y. It’s messy but that’s it.
User Tanvi
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