Answers

2016-06-29T19:04:07+08:00
Foil method is so easy (2x-(7)(5x-4) Multiply 2x and 5x so it will be 10xsquared then after that multiply again the 2x and 4 so it will be 8x Next multiply 7 at 5x so it will be 35x and the last one multiply seven to 4 so it will be 28. The answer will be 10xsquared-43x-28
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