anna741
anna741
18-01-2021
Mathematics
contestada
Solve 2x(x + 4) = x - 3
Respuesta :
everettlawrence123
everettlawrence123
18-01-2021
Answer:
-1/2
Step-by-step explanation:
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radomiradimitrova
radomiradimitrova
18-01-2021
2x ² + 8x = x - 3
2x ² + 8x - x + 3 = 0
2x ² + 7x + 3 = 0
2x ² + 6x + x + 3 = 0
2x(x+3) + (x+3) = 0
(x+3)(2x+1) = 0
x= -3 ; -1/2
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