Question

6x(x+2)-0,5(12x в кубе -7x)-31

Answer 1

6x(x+2)-0.5(12x^2-7x)-31

6x^2+12x-6x^2+3,5x-31

12x+3,5x-31=0

15,5x=31

x=2

Answer 2

6x (x+2)-0,5 (12x а кубе -7х)-31=2

Answer 3

To simplify the given expression, let's start by expanding and combining like terms:

6x(x + 2) - 0.5(12x^3 - 7x) - 31

Step 1: Distribute the coefficients inside the parentheses: 6x^2 + 12x - 0.5 * 12x^3 + 0.5 * 7x - 31

Step 2: Simplify the expression further: 6x^2 + 12x - 6x^3 + 3.5x - 31

Step 3: Combine like terms (x^2 and x terms): -6x^3 + 6x^2 + 12x + 3.5x - 31

Step 4: Arrange the terms in descending order of powers: -6x^3 + 6x^2 + 15.5x - 31

So, the simplified form of the given expression is -6x^3 + 6x^2 + 15.5x - 31.