bhhzd3037 bhhzd3037

02-10-2017
Mathematics

contestada

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

Respuesta :

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

Plot - 7 in the complex plane.

How can online collaboration enhance learning? teaches students how to communicate with friends provides rules and guidelines to follow when writing e-mails O s

Find the mean of the data. Round your answer to the nearest tenth. 15,5,8,12,5,9,4,10,2,11

Which table of ordered pairs represents a proportional relationship ?

Good night every one be safe wear a mask and dont forget to wash your hands

50 POINTS HELP HELP PLZ

Which of the following sentences is correctly punctuated? "I wish I could go to Florida this summer", she thought, "but I just don't have the money." None of th

Help please After explore the COMPASS, ASTROLABE and the CARAVEL, explain how they helped the Europeans begin the AGE OF EXPLORATION.

Pam bought 6.5 pounds of apples for $16.19. If the equation 6.5x = 16.19 models the situation, what does the variable stand for?

Here are ten numbers 3 ,7,2,4,7,5,7,1,8,8 (a) write down the mode (b) Work out the median (c) Calculate the mean (d) What is the range ?