aks3489
22.04.2021 •
Mathematics
Which is larger 66.1% or 66%
(This is for a bet)
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Ответ:
Step-by-step explanation:
u 66.1%
Ответ:
step 2
Step-by-step explanation:
Given
(2x - 3)(5x² - 2x + 7)
2x(5x² - 2x + 7) = 10x³ - 4x² + 14x ← step 1 is correct
- 3(5x² - 2x + 7) = - 15x² + 6x - 21 ← step 2 in her working is incorrect
Adding the results from step 1 and step 2
10x³ - 4x² + 14x - 15x² + 6x - 21 ← collect like terms
= 10x³ - 19x² + 20x - 21