landmar04
landmar04 landmar04
  • 03-07-2018
  • Mathematics
contestada

Which number should be multiples to obtain 165^2-123^2

Respuesta :

DeanR
DeanR DeanR
  • 03-07-2018
The identity in question is called the difference of two squares:

[tex]a^2 - b^2 = (a+b)(a-b)[/tex]

So

[tex]165^2-123^2=(165+123)(165-123)=288\times 42[/tex]

Answer Link

Otras preguntas

Neeeeed help plz!!!!!!!!!!
Complete the analogy. throw : toss :: elevation : _____ a. scale b. altitude c. mountain d. contour line
What systems did the Chinese rulers develop to rule their lands
Which of these men is known as the "Father of English History"? a. Venerable Bede b. King Cnut c. Julius Caesar d. none of these
Sperm whales, a(n) species, maintain their populations close to carrying capacity.
Solve each equation c ÷ 12.5 = 775
Select all that apply. Scientific words often come from ____. German words Latin words Spanish words Greek words
Although she faced much opposition, Alice Evans ___ the dairy industry in the 1920s to pasteurize milk. A.admonished B.assented C.dissented D.evoked
How do I solve 5a + 17 = 47
Which of the following is not an appropriate unit for power? A.horsepower B.watt C.joule/sec D.newton/sec