Question

[a-b]²=-a²-b²+2ab
{2t-5g]²

Answer 1

(2t-5g)²

(2t)²+(5g)²+2(2t)(5g)

4t²+25g²+20tg

Answer 2

Answer:

-2t2-25g2+20tg

Step-by-step explanation:

[a-b]2=-a2-b2+2ab

[2t-5g]2=-(2t)2-(5g)2+2(2t)(5g)

=-2t2-25g2+20tg