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Nastjakoroleva
@Nastjakoroleva
November 2021
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Преобразуйте в многочлен: а) (х-3)(х+3)-х(х-5); б) (м-5)^2-(м-4)(м+4) помогите!!! Срочно прямо сейчас!!!
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Санечка69
Verified answer
а) (х - 3)(х + 3) - х(х - 5) = х
² - 3² - х² + 5х = -9 + 5х = 5х - 9
б) (m - 5)
²
- (m - 4)(m + 4) = m
² - 10m + 25 - (m² - 16) = m
² - 10m + 25 - m² + 16 =
= -10m + 41
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Answers & Comments
Verified answer
а) (х - 3)(х + 3) - х(х - 5) = х² - 3² - х² + 5х = -9 + 5х = 5х - 9б) (m - 5)² - (m - 4)(m + 4) = m² - 10m + 25 - (m² - 16) = m² - 10m + 25 - m² + 16 =
= -10m + 41