Question

(x+3)(x^2-3x+9)-x(x-4)(x+4)-27 якщо x=-8

Answer 1

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Answer 2

To calculate the value of the expression (x+3)(x^2-3x+9)-x(x-4)(x+4)-27 when x = -8, follow these steps:

1. Substitute x with -8 in the expression.
2. Perform the arithmetic operations to find the result.

Let's do the calculations step-by-step:

1. Substitute x with -8 in the expression:

((-8) + 3)((-8)^2 - 3(-8) + 9) - (-8)((-8) - 4)((-8) + 4) - 27

2. Perform the arithmetic operations:

((-5)(64 + 24 + 9)) - (-8)(-12)(-4) - 27

((-5)(97)) - (-8)(48) - 27

-485 + 384 - 27

-128

So, the value of the expression when x = -8 is -128.