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3 years ago

What are the solutions to the following system of equations?

Mathematics

2 answers:

Marina86 [1]3 years ago

8 0

y = x² + 3x - 7
3x - y = -2

3x - y = -2
- 3x - 3x
  -y = -3x - 2
y = 3x + 2

x² + 3x - 7 = 3x + 2
- 3x   - 3x
x² - 7 = 2
+ 7 + 7
x² = 9
  x = ±3

The solutions to the following system of equations is ±3.

Ratling [72]3 years ago

5 0

Answer:

$(-3,-7)$ and $(3,11)$

Step-by-step explanation:

we have

$y=x^{2} +3x-7$ -----> equation A

$3x-y=-2$ ------> equation B

we know that

The solution of the system of equations is equal to the intersection point both graphs

Using a graphing tool

see the attached figure

There are two intersection points

Therefore

The system of equations has two solutions

The solutions of the system of equations are the points $(-3,-7)$ and $(3,11)$

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Answer:

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SVETLANKA909090 [29]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

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melomori [17]

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max2010maxim [7]

Answer:

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Step-by-step explanation:

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3 years ago