Question

x-2y×x²-4xy+y². X=1,y=2
​

Answer 1

Step-by-step explanation:

Given,

X=1

y=2

Solution:

=> 1 - 2×2×1×1 - 4×2+2×2

=> 1 - 4 - 8 + 4

=> -7 (Ans)