Variation?

👨🏻‍🏫 學術台數學

Smile

2018-09-28 10:51 am

y=2x^2＋12x. When y=32,x=2or x=-8. How to find the minimum value of y

回答 (1)

siu

2018-09-28 11:21 am

y=2(x+3)^2-2(3)^2

the minimum value of y is-18

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