Question

24. Find the value of
whenx 2. - 4 and zabo
25. 40% of a certain number is 320, find the number​

Answer 1

Answer:

24. Substituting x=4 and y=2 in the given expression, we get

x

2

−2xy+y

2

=(4)

2

−2×4×2+(2)

2

=16−16+4=4

Step-by-step explanation:

25. 128