Siow Lin Hoe's answer to Dee's Secondary 3 A Maths Singapore question.

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Siow Lin Hoe
Siow Lin Hoe's answer
658 answers (Tutor Details)
1st
In order to make the quadratic equal always positive, the coefficients of x2 must be positive. So it is a “U” shape curve. And it must not touching x-axis. Then the b2-4ac must less than zero.
Dee
Dee
2 years ago
Thank you