Mathematics
Gouldman47
29

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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(1) Answers
Larissa000

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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