Question

simplify 2.3 X 2.3 - 0.3 X 0.3 upon mein
2.3 X 2.3 - 2 X 2.3 X 0.3 + 0.3 X 0.3

Answer 1

The answer should be
(2.3)²-(0.3)²=(2.3+0.3)(2.3-0.3)=2.6*2.0=5.2