nessabear9472
09.06.2020 •
Mathematics
Simplify the following polynomial expression.
3x(-2x + 7) - 5(x -1) (4x -3)
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Ответ:
-26x^2 + 56x -15
Step-by-step explanation:
3x(-2x + 7) - 5(x -1) (4x -3)
-6x^2 + 21x - (5x + 5)(4x-3)
-6x^2 + 21x -20x^2 +15x + 20x -15
= -26x^2 + 56x -15
Ответ:
20 feet
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