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

Martin says that 6 is a common factor of 42, 36 and 50. Is he correct? Explain fully.
Compare the slope in the equation y = 3/5x - 5 with the slope shown in the ordered pairs below. Which has a greater rate of change.
Bonus: Suppose that each daughter in your family has the same number of brothers as she has sisters, and each son in your family has twice as many sisters as he
Please someone help I need the answers today
What two documents will you use to support your response? ____________ and ____________
what is humanaization please answer fassttt!!
ANSWER ASAP PLEASE⚠️⚠️
3(2x–7)=5–(1–x) I NEED Help ASAP
Helllpp plzzzzzzzzzz
what the pathos and ethos of douglass's narrative?​