Your friend can clap his hands 28 times in 12 seconds. How many times can your friend clap his hands in 0.5 minute?
1 answer:
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Notice how the top is an addition of two cubes, namely x and 2.
You can rewrite the equation as:
Now, (a + b)³ can be simplified down to (a + b)(a² - ab + b²)
Following the same pattern, we get:
You can rewrite the equation as:
Now, (a + b)³ can be simplified down to (a + b)(a² - ab + b²)
Following the same pattern, we get:
