Question

How many real solutions does the system of equations have? y = x2 + x − 2 y = -x + 1

Answer 1

The number of the solutions of the equations are 2 that are (1, 0) and (-3, 4).

What are the solutions of the equations?

The equations are given below.

y = x² + x − 2  ...1

y = – x + 1       ...2

From equations 1 and 2, we have

x² + x − 2 = – x + 1

x² + 2x − 3 = 0

Then the factor of the equation will be

x² + 3x – x − 3 = 0

    (x + 3)(x – 1) = 0

                     x = 1, –3

Then  the value of y will be

At x = 1, we have

y = -1 + 1

y = 0

At x = -3, we have

y = -(-3) + 1

y = 4

Then the number of the solutions of the equations are 2 that are (1, 0) and (-3, 4).

The graph is given below.

More about the solutions of the equations link is given below.

https://brainly.com/question/545403

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