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secondary 3 | E Maths
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Z
Z

secondary 3 chevron_right E Maths

Ans is -1.22 n 8.22
What is wrong with my workings?

Date Posted: 6 years ago
Views: 281

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Zhikai
Zhikai's answer
31 answers (A Helpful Person)
1st
Ur first part was correct but u used the wrong formula
Z
Z
6 years ago
Thank you!!!
Zhikai
Zhikai
6 years ago
Np
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Tham KY
Tham Ky's answer
6052 answers (Tutor Details)
Use g completing the square, half of -7 is -3.5, not +1.5...
Z
Z
6 years ago
Thank you!!