Question

(x-4)(x+4)-(3+x)"2 при x=-5,2​

Answer 1

Ответ  решение смотри на фотографии

Объяснение:

Answer 2

Ответ:

Объяснение:

в файле

Answer 3

To evaluate the expression, let's substitute the value of x into the given expression:

(x-4)(x+4)-(3+x)² at x = -5.2

First, substitute x = -5.2 into each term separately:

(x-4)(x+4) = (-5.2 - 4)(-5.2 + 4) = (-9.2)(-1.2) = 11.04

(3+x)² = (3 + (-5.2))² = (-2.2)² = 4.84

Now substitute the calculated values back into the main expression:

11.04 - 4.84 = 6.20

Therefore, when x = -5.2, the value of the expression (x-4)(x+4)-(3+x)² is 6.20.