Factor 8k3 + 27 by using an identity.
how to do it?

The given expression is factored into

Step-by-step explanation:

Given:

The expression to factor is given as:

We observe that 8 =

Also,

So, the above expression can be rewritten as:

The above expression is of the form .

We know that the above identity is factored as:

Here,

Therefore, the given expression can be factored using the above identity and is factored as:

Hence, the given expression is factored into

i dont know nkw

step-by-step explanation:

kenffledkedncklzkdfeserw

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.