Question

please guys please.........

Answer 1

x=175,y=25
x^2+2xy+y^2=(x+y)^2xy
(175+25)^2xy5
200^2
40000

Answer 2

here is your answer
I) 175*175+2*175+25+25*25
=(175)²+2*175*25+(25)²
=30625+8750+625
=40000

ii) 0.75*0.75+2*0.75*0.76+0.76*0.76
=(0.75)²*2*0.75*0.76+(0.76)²
=0.5625+1.14+0.5776
=2.2801

hope it helps you
*=multiplication