Q7c) Why can't I have 1 MINUS root x-4 ?
I got the answer, however, I used trial and error...
Mark scheme does it algebraically:
-1 = a+b
-5 = a-b
Why does the first equation have a +
and the second equation has a - ?
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help with 2 c3 qs watch
- Thread Starter
- 13-05-2015 10:30