Question

2.4 x 2.4-0.8 x 0.8/+
2.4 + 0.8​

Answer 1

Answer:

1.6

Step-by-step explanation:

lets take 2.4=a and 0.8=b

then,

(a²-b²)/(a+b)

(a+b)(a-b)/(a+b)

=(a-b)

(2.4-0.8)

=1.6

Answer 2

Answer:

a² - b² = (a+b)(a-b)

hence (2.4)² - (0.8)²

(2.4+0.8)

= (2.4 + 0.8 ) (2.4 - 0.8)

(2.4 + 0.8)

= 2.4 - 0.8

= 1.6