Is there a quick way to expand: (3x + 5)(x - 7)?
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Using a computer will be quite quick. Its not a tricky one though, have you seen the F.O.I.L method?
Originally Posted by AJD Is there a quick way to expand: (3x + 5)(x - 7)? FOIL will be quickest but you can also use the distributive property
Originally Posted by AJD Is there a quick way to expand: (3x + 5)(x - 7)? This is a good example where you may say "and" instead of "plus". We may also write and or and which is and and and The whole is the sum of the parts WXXXXX WXXXXX YZZZZZ YZZZZZ YZZZZZ which is the 3x multiplied by both in the 2nd brackets and 5 by both in the 2nd brackets.
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