Question

2(3x-1)+3(2x-5) при x=0,25

Answer 1

2(3x-1)+3(2x-5) при x=0,25=>

2(3*0,25-1)+3(2*0,25-5)=2*0,75-2+3*0,5-15=1,5+1,5-17=-14

Answer 2

To find the value of the expression 2(3x-1) + 3(2x-5) when x = 0.25, you simply substitute the value of x into the expression and then perform the calculations.

Let's do that step by step:

1. Substitute x with 0.25 in 3x - 1: 3 * 0.25 - 1 = 0.75 - 1 = -0.25

2. Substitute x with 0.25 in 2x - 5: 2 * 0.25 - 5 = 0.5 - 5 = -4.5

3. Now, plug in the results from step 1 and step 2 into the full expression: 2(3x - 1) + 3(2x - 5) = 2(-0.25) + 3(-4.5) = -0.5 - 13.5 = -14

So, when x = 0.25, the value of the expression is -14.