Question

if x=2 and y=3 then( x+y) ²​

Answer 1

Answer:

(x+y)²=x²+y²+2xy

(2+3)²= 5²=25

Answer 2

Answer:

x=2&y=3

therefore,(2+3)×(2+3)

using (a+b)wholesquare=a×a+b×b+2×a×b

(wholesquare2+3)=2×2+3×3+2×2×3

4+9+12

25