Question

(19,81 − 20,19)(20,19 + 19,81)

Answer 1

Ответ:

-15,2

Объяснение:

1) 19,81 - 20,19 = -0,38.

2) 20,19 + 19,81 = 40.

3) -0,38 *40 = -15,2

Answer 2

Ответ:-15,2

Объяснение:

(19,81-20,19) (20,19+19,81) =-0,38*40=-15,2

Answer 3

To solve this expression, you can use the distributive property, which states that $a(b + c) = ab + ac$.

Let's break down the expression step by step:

$(19.81 - 20.19)(20.19 + 19.81)$

First, simplify inside the parentheses:

$-0.38 \times 40$

Now, multiply:

$-0.38 \times 40 = -15.2$

So, $(19.81 - 20.19)(20.19 + 19.81) = -15.2$.