Question

5x+|1+8x| при x= - 1,4​

Answer 1

Ответ:

3,2

Пошаговое объяснение:

5х+{1+8х}= -7+10,2=3,2

Answer 2

To evaluate the expression $5x+|1+8x|$ at $x = -1.4$, we simply substitute the value of $x$ into the expression and perform the calculations.

Given $x = -1.4$, we have:

$5x + |1 + 8x| = 5(-1.4) + |1 + 8(-1.4)|$

Let's calculate this step by step:

1. $5(-1.4) = -7$
2. $8(-1.4) = -11.2$
3. $1 + (-11.2) = -10.2$
4. $| -10.2 | = 10.2$

Now, substituting these values back into the original expression:

$5x + |1 + 8x| = -7 + 10.2 = 3.2$

So, when $x = -1.4$, the value of $5x + |1 + 8x|$ is $3.2$.