Question

63^2-23^2---------------------------------- 71^2-15^2+86×24помогите решить

Answer 1

(63^2-23^2)
------------------------- =
71^2-15^2+86*24

(63-23)(63+23)
_______________ =
(71-15)(71+15)+86*24

40*86 40*86
___________ = _________ =
56*86+86*24 86(56+24)

Сокращаем
40 1
______= _____ =0,5
80 2

Answer 2

Calculation of the Expression

To solve the given expression 63^2 - 23^2 + 71^2 - 15^2 + 86 × 24, we can follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

First, let's calculate the values of the squares and the multiplication:

1. 63^2: - The square of 63 is 3969.

2. 23^2: - The square of 23 is 529.

3. 71^2: - The square of 71 is 5041.

4. 15^2: - The square of 15 is 225.

5. 86 × 24: - The product of 86 and 24 is 2064.

Now, we can substitute these values back into the original expression:

3969 - 529 + 5041 - 225 + 2064

Next, we can perform the addition and subtraction from left to right:

3969 - 529 = 3440

3440 + 5041 = 8481

8481 - 225 = 8256

8256 + 2064 = 10320

So, the value of the given expression 63^2 - 23^2 + 71^2 - 15^2 + 86 × 24 is 10320.