farida82 farida82

17-12-2019
Mathematics

contestada

solve the simultaneous equations.
Y=5x^2 + 4x-19
Y=4x+1

Respuesta :

Stefanisaska Stefanisaska

19-12-2019

Answer: x1=-2

x2=2

Step-by-step explanation:

5x²+4x-19=4x+1

5x²+4x-19-4x-1=0

5x²-20=0

5x²=20

x²=20/5

x²=4

x1=-√4=-2

x2=+√4=2

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