Question

Factor completely 5x^4-80

Answer 1

Answer:

Since both terms are perfect squares, factor using the difference of squares Since both terms are perfect squares, factor using the difference of squares formula,  

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

where  

a

=

x

2

and  

b

=

4

.

5

(

x

2

+

4

)

(

x

+

2

)

(

x

−

2

)

Answer 2

Answer:

b=4

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula,  

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

where  

a

=

x

2

and