Question

0,2⋅(х-1)-0,4⋅(5-2х)⋅2,3; Если х=0,3 помогите пожалуйста)

Answer 1

Получилось как-то так

Держи

Answer 2

Sure, let's solve the expression step by step with the given value of x:

1. Replace x with 0.3 in the expression:

0.2*(0.3 - 1) - 0.4*(5 - 2*0.3)*2.3

2. Simplify the expressions inside the parentheses:

0.2*(-0.7) - 0.4*(5 - 0.6)*2.3

3. Continue simplifying:

-0.14 - 0.4*(4.4)*2.3

4. Perform the multiplication:

-0.14 - 0.4*10.12

5. Finish the calculation:

-0.14 - 4.048

6. Final result:

-4.188

So, if x = 0.3, the value of the expression is approximately -4.188.