Sophielover2014
Sophielover2014
14-05-2020
Mathematics
contestada
-5x²+7x=-9
using quadratic formula
Respuesta :
gracesunworld
gracesunworld
14-05-2020
Answer:
-5x²+7x+9=0
Step-by-step explanation:
move 9 to the other side
Answer Link
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7x + 5y = 29 21x - 25y = -33
