ggrog
ggrog
04-11-2021
Mathematics
contestada
6.) What is the sum of 3x² + x+8 and x? - 9 ?
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syahbanazacki
syahbanazacki
04-11-2021
Step-by-step explanation:
= (3x² + x + 8) + (x² - 9)
= (3 + 1)x² + x + (8 - 9)
= 4x² + x - 1
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