Factorisation and Application to Numerical Evaluation
Factorisation and Application to Numerical Evaluation
IP 1
Others>EOY
- Factorise \({cd - ce}\).
- Using the result in (a), find the exact value of \({12345 \times 999 - 12345 \times 989}\).
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Answer:(a) c(d - e); (b) 123450
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