Question

8,4.(3-12х)-4,3 + 1,5х; при X=-03 ​

Answer 1

Пошаговое объяснение:

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Answer 2

To evaluate the expression 8.4(3-12x) - 4.3 + 1.5x when x = -0.3, substitute the value of x into the expression and perform the calculations.

Let's calculate step by step:

1. Substitute x = -0.3 into the expression: 8.4(3 - 12(-0.3)) - 4.3 + 1.5(-0.3)

2. Simplify the expression inside the parentheses: 8.4(3 + 3.6) - 4.3 + 1.5(-0.3)

3. Perform the addition inside the parentheses: 8.4(6.6) - 4.3 + 1.5(-0.3)

4. Multiply 8.4 by 6.6: 55.44 - 4.3 + 1.5(-0.3)

5. Multiply 1.5 by -0.3: 55.44 - 4.3 - 0.45

6. Perform the subtraction: 51.14 - 0.45

7. Calculate the final result: 50.69

Therefore, when x = -0.3, the value of the expression 8.4(3-12x) - 4.3 + 1.5x is 50.69.