MathsWhizz1928
MathsWhizz1928 MathsWhizz1928
  • 12-06-2016
  • Mathematics
contestada

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 Its an urgent Thanks And can u also tell me how to work it out class=

Respuesta :

Leave
Leave Leave
  • 19-06-2016
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 :)

Answer Link

Otras preguntas

what tells you which operation to perform first... I really need the answer like now!! thank you!
What factors distinguish one biome from another?
81 is 54% of what number
What is t equal to in the equation 6t-1/6=9
0.285 to the nearest tenth
What is a hook in the first paragraph of an essay
Find the greatest common factor (gcf) of 15 and 35
What does ¿Cuál es la fecha de hoy? mean and how would you answer?
81 is 54% of what number
What are two equivalent fractions for 2/10, three equivalents fractions for 3/11 and three equivalent fractions for 1/12?