Olimpiad question: Aphiwe and Ben tried to solve ax^2+bx+c=0, but each made exactly one error in copying.

[edrichcronje]

Number 10

 

[stapel]

Number 10
View attachment 35795

We'll be glad to help, as soon as you supply the requested information (that you saw when you read the "Read Before Posting" message); namely, a clear listing of your thoughts and efforts so far.

Thank you!

Eliz.