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

i need help quick it is too hard for me to answer
Which number is a rational, an integer, and a real number? A. 0 B. there is no such thing C. -4/7 D. pi4
Her cars brake lights were faulty - where do I put the apostrophes?
PLEASE HELP!!! WILL MARK BRAINLIEST IF YOU ANSWER!!!
State the basic assumptions of the kinetic theory. a- All matter is composed of small particles; b- The particles are in constant motion; c- Molecules are smal
my question is “explain how to use partial quotients to divide 235 by 5.”
What happens to the energy symbols on the iron block as it is heated? I am in 8th grade k12
Construction crews sometimes use this reaction for welding underwater structures: Fe2O3 2Al → Al2O3 2Fe How many moles of iron (Fe) would be produced if 2. 50 m
What 3 battles were fought along the TX Gulf Coast? a. b. c.
Ray received a meeting request through his outlook account and clicked accept. Which of these will occur? Check all that apply.