lazybones lazybones

18-01-2016
Mathematics

contestada

use models to prove that 3 (a+b) is equivalent to 3a + 3b.

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CassCheung CassCheung

18-01-2016

The 3 is distributed to the a+b inside the brackets........

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alice0520 alice0520

18-01-2016

E.g if a=2, b=3

3(2+3)
=3(5)
=15

3(2) + 3(3)
=6+9
=15

Answer Link

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