Question

(14y+21)(1,8-0,3y)=0 Ривнчннч

Answer 1

Ответ:

0 или -1,5 или 6

Пошаговое объяснение:

14у+21=0

14у=-21

у=-1,5

1,8-0,3у=0

0,3у=1,8

у=6

Пожалуйста, отметь этот ответ как лучший(корона)

Answer 2

Ответ:

(14y+21)(1,8-0,3y)=0

14y+21=0

14y=0-21

14y=-21

Y=-21:14

Y=-1,5

1,8-0,3y=0

-0,3y=-1,8

Y=-1,8/(-0,3)

Y=6

y= -1,5 or 6

Answer 3

To solve the equation $(14y + 21)(1.8 - 0.3y) = 0$, we'll use the zero-product property, which states that if the product of two factors equals zero, then at least one of the factors must be zero.

So, we'll set each factor equal to zero and solve for $y$:

1. $14y + 21 = 0$: Subtract 21 from both sides: $14y = -21$ Divide both sides by 14: $y = -\frac{21}{14} = -\frac{3}{2}$

2. $1.8 - 0.3y = 0$: Add $0.3y$ to both sides: $1.8 = 0.3y$ Divide both sides by $0.3$: $y = 6$

So, the solutions to the equation $(14y + 21)(1.8 - 0.3y) = 0$ are $y = -\frac{3}{2}$ and $y = 6$.