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

again plssssssssssssssssssssssssssssssssssssssssss
What is the circumference of circle P in terms of pi (3.14) A. 4cm B. 8 cm C. 16 cm D. 64 cm
Solve for x. 23 13 [21
Why did Nixon replace Vice President Spiro Agnew with Gerald Ford?
Please help <3 Find the value of the variables in the parallelograms.
Will 4 - 6 be a negative or positive answer? Negative Positive
A circular town clock has a radius of 4 feet. Enter the area, in square feet, of the town clock. Round your answer to the nearest tenth.
five plus three plus five to the second power times five minus two question off of moby max
Two trains leave New York at the same time. One travels south 50 miles per hour and the other traveled east at 40 miles per hour. How far apart are they at the
00:00 Find the surface area of the square pyramid. Enter your answer in the box. 10 cm A 11 cm 11 cm cm2