Seudónimo Seudónimo
  • 01-02-2017
  • Mathematics
contestada

Which expressions are differences of squares?

Select each correct answer.

t^2−1

n^2−225

k^2+81

p^2−40

Respuesta :

Whovian000000
Whovian000000 Whovian000000
  • 01-02-2017
t^2-1 and n^2-225

I don't think k^2+81 because of the "+" sign, only "-" signs are differences of squares.
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 01-02-2017
a²-b² is diffrence of squares

first one is
t²-1², yep

2nd one
n²-15², yep

3rd one is not difffernce

4th one can be forced into p²-(2√10)², but I wouldn't say it is



first 2
Answer Link

Otras preguntas

Which word best describes the tone of W.H. Auden' s poem "Funeral Blues"?
PLZ HELP. THIS IS EASY PROBABLY HAHA. WILL GIVE THANKS AND BRAINLIEST
Which of the following situations is one where the goal of efficiency is being met?
What are the solutions to 2x^2+7x=4? Select all that apply. A. 1/2 B. 4 C. -1/2 D. -4 E. 7 F. -7
Which sentence from Tim O'Brien's chapter "Good Form" best shows that his work is an example of metafiction?
How did the pioneers going west cross the rivers with the wagon?
(-3)(8+-10)!!!!!!!!!!!!!!!!!!!!!
Due tomorrow I need the answer for this problem. Please help
Why does macbeth brag that i smile at swords laugh scornfully at weapons'? what makes him certain he will not be killed?
How is friction harmful??