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yulyashka [42]
3 years ago
11

Solve the system of equations. 14x + y = −4 y = 3x^2 − 11x − 4

Mathematics
1 answer:
Citrus2011 [14]3 years ago
6 0
X = 0 or x = -1

You can solve this by using the second equation, which is already solved for y and subbing that in for y in the first equation. 

14x + (3x^2 - 11x - 4) = -4
14x + 3x^2 - 11x = 0
3x^2 + 3x = 0

Then you can solve by pulling out the greatest common factor

3x(x + 1) = 0

Then set each part equal to 0 

3x = 0
x = 0

x + 1 = 0
x = -1
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