menezessasha
menezessasha
16-08-2017
Mathematics
contestada
(r-1)^2
this is to the power of two
Respuesta :
Banabanana
Banabanana
16-08-2017
Use formula: (a-b)
² = a² - 2ab + b²
(r-1)
² =
r² - 2r + 1
Answer Link
kphung76127
kphung76127
16-08-2017
(r-1)^2= (r-1)(r-1)
Foil:
First: r*r=r^2
Outer: r*-1= -r
Inner: r*-1= -r
Last: -1*-1= 1
Put it together and simplify:
r^2-r-r+1
r^2-2r+1
Final answer: r^2-2r+1
Answer Link
VER TODAS LAS RESPUESTAS ( 12+ )
Otras preguntas
The number 0.127 is how much greater than 1/8 ? Can you explain this so I can understand how it works?
why did archimedes of syracuse go to alexandria to study and not near home
hi um where does an apostrophe go in pilgrims place
1. What is the shortest distance from a point to a line?A) a perpendicular segmentB) a transversalC) a parallel segmentD) an arc
a bicycle has tires that are 24 inches in diameter whats the circumfrence of one tire?
what jobs did Gandhi have before he was famous ?
Write the decimal expansion for 8 over 33
What are the solutions to the equation x2 + 3 = 124? A. –3 and 3
what is the ratio of X:Y. 12Y equal 7X
why did archimedes of syracuse go to alexandria to study and not near home
