IDNStudy.com, kung saan ang kuryusidad ay nagtatagpo ng kalinawan. Magtanong ng anumang bagay at makatanggap ng kumpleto at eksaktong sagot mula sa aming komunidad ng mga propesyonal.

what must be added to (x+2) to complete the factors of (x³+8)​

Sagot :

Answer:

x

3

8

is the difference of two cubes and can be factored in the following pattern.

a

3

b

3

=

(

a

b

)

(

a

2

+

a

b

+

b

2

)

a

3

factors to a

b

3

factors to b

The pattern of the signs follows the acronym SOAP

S = same sign as the cubes

O = opposite sins of the cubes

AP = always positive

x

3

factors to x

8

factors to 2

x

3

8

=

(

x

2

)

(

x

2

+

4

x

+

4

)

Hope it help ! :D