1.

What is (a+b)^3 .....

Answer»

Step-by-step explanation:

The formula is (a-B)³=a³-3a²b+3ab²-b³. ... You take the drawing of the formula (a+b)³=a³+3a²b+3ab²+b³ from above and replace a by the DIFFERENCE a-b. Then the edges are (a-b)+b with DIFFERENT combinations (on the LEFT). The term (a-b)³ is ILLUSTRATED by the blue cube (on the right).



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