Yraised to 3 subtracted by y raised to 2 subtracted by 6y subtracted by 4 divided by y+1

The expression is

For Factors are ,  

Therefore

Step-by-step explanation:

Given expression can be written as  

By using synthetic division we can find factors of given expression

           1       -1        -6         -4

-1     |   0      -1         2          4

       | _____________________

           1        0       -4          0

Therefore quadratic equation is

Here a=1 , b=-2 and c=-4

Therefore and  

The expression is

For Factors are ,  

Therefore

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.