Question

please answer this question....
please please.... it's urgent​

Answer 1

Answer:

c) is the answer

Step-by-step explanation:

Because (a-b) square=a2+b2-2ab

a=2x,b=-5,

(2x)2+(5)2-2(2x)(-5)

(2x)2+(5)2+20x

Answer 2

Answer:

As the formula of ( a-b) square = a^2 + b^2 - 2ab

so the answer is -20 x