Question

(1.2x - 0.8y)2 – (1.2x +0.8y)2 :- simply​

Answer 1

Answer:

-2.4y

Step-by-step explanation:

(1.2x-0.8y)2-(1.2x+0.8y)2. (Taking 2 as common)

=2(1.2x-0.8y-1.2x-0.8y)

=2(-1.6y)

=-2.4y

Answer 2

Answer:

Step-by-step explanation:

1. Formula :                       (a+b)=a^2+b^2 + 2ab
   
   (1.2x)^2 + (0.8)^2=+2 (1.2x)+(0.8y)
   
   +2*12=24*8=192
   
   (1.2^2x^2)+(0.8^2 y^2)=192xy
   
   12*12=144 8*8=64
   
   ANSWER : = 1.44x^2+0.64xy^2+1.92xy