danielahchf
danielahchf danielahchf
  • 04-03-2019
  • Mathematics
contestada

Which expressions are differences of squares?

Choose all answers that are correct.

t^2 - 1

n^2 - 225

k^2 + 81

p^2 - 40

Which expressions are differences of squares Choose all answers that are correct t2 1 n2 225 k2 81 p2 40 class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 04-03-2019

Answer:

  • t^2 - 1
  • n^2 - 225

Step-by-step explanation:

For an expression to be a difference of squares, it must be a difference of two terms, each of which is a square. A term is a square if its coefficient is a square and if its degree is even.

The third expression is a sum, not a difference; the fourth expression has a term that is not a square (40). Neither of those is a difference of squares.

Answer Link

Otras preguntas

URGENT: please help me i keep waking up in the same day and i dont know what to do PLEASE HELP!!!
Which table shows a linear functioooooonnn helpppp!
I need help with this question ASAP
a person who creates a computer virus is called ​
Add the same number to both the numerator and the denominator ofthe fraction 7/17, to change it to 3/5.​
Describe the purpose and efforts of the Congressional (Radical') Republicans of the 1860s and 18/05
1. Determina cuales de las siguientes expresiones son proposiciones.a) Sube al cuarto piso.b) El triángulo ABC es equilátero.c) ¿Qué es un ángulo obtuso?​
Peter is a tall boy...where is the adjective in the sentence
the part of aeroplane is made up of alumunium why?​
what is the meaning of HML​