alexis123424
alexis123424
19-04-2021
Mathematics
contestada
Can you help me please thank you
Respuesta :
NinethGrader
NinethGrader
19-04-2021
Answer:
6. 4x^2 + x - 1
7. 3x^2 + 4x + 4
Explanation:
(3x^2 + x + 8) + (x^2 - 9)
4x^2 + x - 1
(5x^2 + 8x - 2) - (2x^2 - 4x + 6)
3x^2 + 4x + 4
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