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Minimum and maximum values in quadratic expressions part two, featuring Shadow, Silver, Mighty, Sonic, Ray and Tails



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  • 分級:普通級(General) - 全年齡皆可觀看
  • 發佈時間:2021-12-01 05:18

Minimum and maximum values in quadratic expressions part two, featuring Shadow, Silver, Mighty, Sonic, Ray and Tails



Factorize (9x² - 12x + 4) by completing the square and find its minimum value and the x-value where the minimum value occurs.

9x² - 12x + 4 = (3x - 2)²

9x² - 12x + 4 >= 0

(3x - 2)² >= 0

minimum value = 0 

(3x - 2)² = 0

x = 2 / 3

 

Factorize (25x² - 20x + 4) by completing the square and find its minimum value and the x-value where the minimum value occurs.

25x² - 20x + 4 = (5x - 2)²

25x² - 20x + 4 >= 0

(5x - 2)² >= 0

minimum value = 0 

(5x - 2)² = 0

x = 2 / 5

 

Factorize (25x² - 30x + 9) by completing the square and find its minimum value and the x-value where the minimum value occurs.

25x² - 30x + 9 = (5x - 3)²

25x² - 30x + 9 >= 0

(5x - 3)² >= 0

minimum value = 0 

(5x - 3)² = 0

x = 3 / 5


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0 只獸收藏了此作品
  • 瀏覽量:471
  • 分級:普通級(General) - 全年齡皆可觀看
  • 發佈時間:2021-12-01 05:18