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junior college 1 | H1 Maths
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Whr did i go wrong for Q 8?
Date Posted: 7 years ago
Views: 428
The LHS denominator is (x-2), your 3rd line became (x+2)!
Ive edited that out and i got x=2?
Cn u show me how u do
I got x=2 too, but you observe you very first eqn, denominator is x and (x-2), x cannot take zero or 2!
What is your teacher's answer?
No solution . But i got it as x=2 . Can u show me ur working?
Your method is valid for secondary level only, should not criss-multiply if you are doing JC math. Denominators do play a part in choosing answers.
Eh but my lecturer nvr say anything abt not allow to cross multiply
Can cross-multiply to solve, but always need to verify all answers you found. x=2 is the solution or the root, but it will be rejected in this question. Reason is as I shown in pic.
Please rotate your question the right side up the next time. I've done it for you this time.
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done
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clear
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May I know you are in Sec or JC?
Date Posted:
7 years ago
JC . Why?
THANK YOU
My final steps should be:
2 - x = 0
x = 2 (rej, x not = 2, x not = 0)
2 - x = 0
x = 2 (rej, x not = 2, x not = 0)
Okay thanks! I know that the ans i got is just the trial root. Bcos when u say no solution i thought cannot solve at all le
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