Step-by-step explain: let's remember the formula x³+y³=(x+y)(x²-xy+y²) and also x³+y³=(x+y)³-3xy(x+y) then $\displaystyle\boldsymbol{ x^3+y^3=\underbrace{(x+y)^3}_{6}-3\underbrace{xy}_{2}\underbrace{(x+y)}_6}=\\\\6^3-3\cdot 2\cdot 6=216-36=180$

6 0

3 years ago

The opposite of 7 is 1/7

geniusboy [140]

That is false the opposite of 7 is -7

4 0

2 years ago

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What is a rational number?

jonny [76]

A rational number is: A number that can be written as a quotient of 2 integers, where the divisor is not 0.

Example: 2/5 , -6,

Because you can write any integer as a quotient with a denominator of 1, all integers are rational numbers,

Example: 5 = 5/1

~Aamira~

Hope this helped☺☺

8 0

3 years ago

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