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secondary 4 | A Maths
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secondary 4 chevron_right A Maths chevron_right Singapore

Hello, I need help with this question. Thank you :)

Date Posted: 2 years ago
Views: 409
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HiderApplecross
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1783 answers (Tutor Details)
Hi, I provide 1 to 1 tuition, $10/1.5h, can cover English / Maths / Science / Physics, ex-school teacher, can produce teaching cert from NIE, WhatsApp 9033 8810 or email [email protected] :)
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Gerry Lim
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Remember the properties of discriminant when D>0, D=0, and D<0. If they ask you 1 or more roots, then instead of > should be >= sign
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2 years ago
Why not 64-16k+16>0?
Gerry Lim
Gerry Lim
2 years ago
Oh sry that's my mistake. Should be 64-16k-16 instead of 8