groomvalentina2004 groomvalentina2004

18-05-2020
Mathematics

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Please help me with 10 and 11

Please help me with 10 and 11 class=

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Аноним Аноним

18-05-2020

Answer:

10. 2x+y

11. x^2-15x+3

Step-by-step explanation:

10. when u add 7x+3y and 4x+4y you will get 11x+7y. 13x+8y minus 11x+7y will be 2x+y

11. when u add 3x^2+7x+1 and x^2-x+1 u will get 4x^2+6x+2. 5x^2-9x+5 minus 4x^2+6x+2 will be x^2-15x+3

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