Question

5+х в2-(х+1)(х+6)и найдите его значение при х+0,2

Answer 1

$5+x^2-(x+1)(x+6)=5+x^2-x^2-6x-x-6=-7x-1\\\\x=0,2\\\\-7\cdot0,2-1=-1,4-1=-2,4$

Answer 2

To find the value of the expression 5 + х в 2 - (х + 1)(х + 6) when х = 0.2, we simply substitute the value of х into the expression and then perform the calculations.

Given expression: 5 + х в 2 - (х + 1)(х + 6)

Now, let's replace х with 0.2:

5 + (0.2) в 2 - (0.2 + 1)(0.2 + 6)

Now, perform the calculations step by step:

1. 0.2 в 2 = 0.04
2. 0.2 + 1 = 1.2
3. 0.2 + 6 = 6.2

Now the expression becomes:

5 + 0.04 - (1.2)(6.2)

Next, calculate the values in parentheses:

1. 1.2 * 6.2 = 7.44

Now the expression becomes:

5 + 0.04 - 7.44

Finally, add the numbers:

5 + 0.04 - 7.44 = -2.40

So, when х = 0.2, the value of the expression is -2.40.