Question

Такой пример -0.2*(-7)^4-1*(-7)^3-13заранее спасибо большое !)

Answer 1

$((-0,2)*(-7)^4)-(1*(-7)^3)-13=(-0,2*2401)-(1*(-343)- -13 = (-480,2)+343-13 = (-137,2)-13 = -150,2$

Answer 2

-0.2*(-7)^4-1*(-7)^3-13

First, we will calculate the value of (-7)^4, which is 2401. Then, we will calculate the value of (-7)^3, which is -343. Now we can substitute these values into the equation:

-0.2*2401 - 1*(-343) - 13

Now we can perform the multiplications:

-480.2 + 343 - 13

Now we can perform the additions and subtractions:

-150.2

So the value of the expression -0.2*(-7)^4-1*(-7)^3-13 is -150.2.

I hope this helps! Let me know if you have any other questions.