Question

If y = x3 - x2 + x - 1
Find y, when x = -2

Answer 1

Answer:

Step-by-step explanation:

Put the value of x in the given equation we get the value of y=-15

Answer 2

The value of y for x=-2 is -15.

Given:

An equation $y=x^3-x^2+x-1$.

To Find:

The value of y, when x = -2.

Solution:

An equation for y is given in the form of x and it is asked to find y for x=-2. So, -2 will be substituted in the place of x into the given equation and solved for y.

Substitute x = -2 in $y=x^3-x^2+x-1$ to find y.

$y=(-2)^3-(-2)^2+(-2)-1\\=-8-(4)-2-1\\=-8-4-2-1\\=-15$

Thus, the value of y for x=-2 is -15.