Question

(1,2x+1,8)•(7x-0,21)=0​

Answer 1

Ответ:

x=-1.5; x=0.03

Пошаговое объяснение:

каждую скобку приравниваем к нулю

1.2x+1.8=0              7x-0.21=0

1.2x=-1.8                 7x=0.21

x=$\frac{-1.8}{1.2}$=-1.5              x=$\frac{0,21}{7}$=0.03

Answer 2

It looks like you've provided an equation that needs to be solved for the value of 'x'. Let's solve it step by step:

The equation is: (1 + 2x) * (7x - 0.21) = 0

This equation can be satisfied if either of the factors on the left-hand side equals 0, because the product of any number and 0 is always 0. So, we can set each factor equal to 0 and solve for 'x':

1 + 2x = 0 Solving for 'x': 2x = -1 x = -1/2

7x - 0.21 = 0 Solving for 'x': 7x = 0.21 x = 0.21/7 x = 0.03

So, the possible solutions for 'x' are -1/2 and 0.03, which make the original equation (1 + 2x) * (7x - 0.21) equal to 0.