Question

(3x+42)•(4,8-0,6x)=0

Answer 1

Ответ:

3x•4.8+3x•0.6x+42•4.8-42•0.6x=0

14.4x-1.8x+201.6-25.2=0

-16.2x+176.4=0

-16.2x=-176.4

X=-10.9

Answer 2

To solve the equation (3x + 42) * (4.8 - 0.6x) = 0, you can use the zero-product property, which states that if the product of two factors is equal to zero, then at least one of the factors must be equal to zero. So, you can set each factor equal to zero and solve for x.

First, set 3x + 42 equal to zero: 3x + 42 = 0

Now, solve for x: 3x = -42 x = -42 / 3 x = -14

Next, set 4.8 - 0.6x equal to zero: 4.8 - 0.6x = 0

Now, solve for x: -0.6x = -4.8 x = -4.8 / -0.6 x = 8

So, the solutions for the equation (3x + 42) * (4.8 - 0.6x) = 0 are x = -14 and x = 8.