bhhzd3037 bhhzd3037
  • 02-10-2017
  • Mathematics
contestada

Multiplying by a conjugate gives a rational number because (a + b)(a -
b.= _____.

Respuesta :

kritter1
kritter1 kritter1
  • 02-10-2017
Use foil.

(a+b)(a–b)
a^2 -ab +ab -b^2
a^2 – b^2

Hope I helped :)
Answer Link

Otras preguntas

What does issue mean?
two forces a 60 newton force east and an 80 newton force north
Asperger's disorder is characterized by: a. significant language delay. b. deficits in intelligence. c. problems in social interaction. d. adaptive behavior def
Scientists who rely on creativity also tend to be persistent when they pursue a research goal. How might persistence be an advantage for a creative scientist?
Who was Pericles? A. a Greek speaker whose fame eventually spread far and wide B. the leader who developed the strategies leading to Greek naval success C.
"Yonder sky has wept tears of compassion" is an example of A. personification. B. consonance. C. assonance. D. alliteration
John Brown stirred up a lot of controversy with his attack on Ferry in Virginia.
Determine os divisores dos números abaixo e diga quais são os primos e quais são compostos: a) 12 b)13 c)14
what percent of 75 is 46.5
how did life in the middle colonies compared to life in New England