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Mrac [35]
3 years ago
13

-9x(x-1)+(-x)(-3x+4)

Mathematics
1 answer:
Greeley [361]3 years ago
8 0
- 9 x * ( x - 1 ) + ( - x ) * ( - 3 x + 4 ) =
= - 9 x² + 9 x - x * ( - 3 x + 4 ) =
= - 9 x² + 9 x + 3 x² - 4 x =
= - 9 x² + 3 x² + 9 x - 4 x =
= - 6 x²  + 5 x  

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