Question

Factorrse 2x²y +4xy² and find the value of the expression when x=-5 and y=2

Answer 1

Answer:

answer is 20

Step-by-step explanation:

Simplyfing by substituting x=-5, y= 2.

Answer 2

Answer:

the value of the expression when x=-5 and y=2 is 20

Step-by-step explanation:

2x²y +4xy²=0

2xy(x+y)=0

xy(x+y)=0

CASE-I :

xy=0

x=0 or y=0

CASE-II :

x+y=0

x=-y

From case I & II we can say that,

roots are x=y=0

For x=-5, y=2

2x²y +4xy²

2(-5)^2(2)+4(-5)(2)^2

2(25)(2)+4(-5)(4)

2(50)-20(4)

100-80

20