bianca1217 bianca1217
  • 18-12-2020
  • Mathematics
contestada

5x2 + 3y2 = 68
4x2-2y2 = -16

Respuesta :

ddss1972
ddss1972 ddss1972
  • 18-12-2020

Step-by-step explanation:

multiply ,1 st x 2 and 2nd x 3

so,

10 X2 + 6y2 = 136

12 X2 - 6y2 = - 48

________________

22 X 2 = 8 8

X 2 = 88 / 22

X2 = 44

X= ± 2✓ 11

y 2= 96

y = ± 4✓ 6

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