Question

(3x-4,5)(2/7х-1)=0 (2х-9,8)(9,8х-2)=0

Answer 1

(3x-4,5)(2/7х-1)=0
3x-4,5=0
3x=4,5
x=4,5:3
x=1,5
--
2/7x-1=0
2/7x=1
x=1*7/2
x=3,5
ответ(1,5; 3,5)
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(2х-9,8)(9,8х-2)=0

2x-9,8=0
2x=9,8
x=9,8:2
x=4,9
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9,8x-2=0
9,8x=2
x=2:9,8
x= $\frac{10}{49}$
ответ(4,9; $\frac{10}{49}$)

Answer 2

To solve the given equations:

Equation 1: (3x - 4.5)(2/7x - 1) = 0 Equation 2: (2x - 9.8)(9.8x - 2) = 0

To find the solutions, we need to set each factor within the parentheses equal to zero and solve for x.

For Equation 1: Setting the factors equal to zero individually: 3x - 4.5 = 0 -> 3x = 4.5 -> x = 4.5/3 -> x = 1.5

2/7x - 1 = 0 -> 2/7x = 1 -> x = 7/2

So, for Equation 1, we have two possible solutions: x = 1.5 and x = 7/2.

For Equation 2: Setting the factors equal to zero individually: 2x - 9.8 = 0 -> 2x = 9.8 -> x = 9.8/2 -> x = 4.9

9.8x - 2 = 0 -> 9.8x = 2 -> x = 2/9.8 -> x ≈ 0.2041

Therefore, for Equation 2, we have two possible solutions: x = 4.9 and x ≈ 0.2041.

In summary, the solutions to the given equations are:

Equation 1: x = 1.5, x = 7/2 Equation 2: x = 4.9, x ≈ 0.2041