bushiahmed203 bushiahmed203

25-04-2017
Mathematics

contestada

what is the difference of r+2/r+4 and 3/r+1?

Respuesta :

25-04-2017

I assume you mean:

(r+2)/(r+4)-3/(r+1) we need a common denominator of (r+1)(r+4)

[(r+2)(r+1)-3(r+4)]/(r^2+5r+4)

(r^2+3r+2-3r-12)/(r^2+5r+4)

(r^2-10)/(r^2+5r+4)

now you could factor out the answer if you wanted to...

((r+√10)(r-√10))/((r+1)(r+4))

Answer Link

Otras preguntas

Calculate the discriminant x2-2x+4=0 A.0 B.20 C.12 D.-12

Which line has an undefined slope? A. x=18 B. 2y-6x=0 C. y=-9 D. y=x

what is the eighth term of the sequence 2,8,32,128

Using index cards will improve a presentation because

Which best describes the Bush Doctrine of Preemption?

A purpose of the Declaration of Independence was to explain the problems the colonists had with British rule. the reasons colonists formed the Continental Congr

What type of sentence error, if any, is found below? Our team has had one of those seasons. When, regardless of how we play, we just seem to win anyway. fragmen

which number is ten thousand less than 842,719

PLEASE HELPWhich of these was the main motivation for the United States’ entry into World War I? to acquire overseas territories to maintain freedom of trade fo

the ratio of 32 hours to 48 hours typed as a simplest fraction