For example:

To do 3(2x+y)

We multiply everything inside the brackets by what's outside so we get:

6x²+3y


Now a bit harder:

2x(x-2y)

We do the same, but then we get:

2x²-4xy

Questions:
Expand

  1. -3(2x - 4)
  2. 2(3y + 5)
  3. 2y(4x÷3y)
  4. 2x(2xy+4)


Ed Walden 8J
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