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Please help me with these questions! It's an urgent! Thanks! And can u also tell me how to work it out

Please help me with these questions! It's an urgent! Thanks! And can u also tell me how to work it out
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Please help me with these questions! It's an urgent! Thanks! And can u also tell me how to work it out

Please help me with these questions! It's an urgent! Thanks! And can u also tell me-example-1
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User Menepet
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1 Answer

4 votes
11. (x-1) (x-1) = x^2 - x - x + 1 = x^2 - 2x + 1

12. (x+7) (x-7) = x^2 - 7x +7x - 49 = x^2 - 49

14. 2x + 5 > 3 <=> 2x > -2 <=> x > -1
Hope you understand :)

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User EelkeSpaak
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