-1(3xy) = -1 * 3xy = -3xy
Answer:
Option 3 is correct that is 
Step-by-step explanation:
We have general formula for sum of cube which is
Here, we have a=s and b=6
on substituting the values in the formula we will get
After simplification we will get
After rearranging the terms we will get
which exactly matches option 3 in the given options.
Therefore, option 3 is correct that is
It is not.
First, divide 36 by 4.
= 9
So, 9 for each hat.
9 x 7 =63
In conclusion, it is in fact not equivalent.
<span><span><span><span>4<span><span>(<span>−2</span>)</span>2</span></span>+<span><span>(8)</span><span>(<span>−2</span>)</span></span></span>+<span><span>(3)</span><span>(<span>−2</span>)</span></span></span>+6</span><span>=
<span><span><span><span><span>(4)</span><span>(4)</span></span>+<span><span>(8)</span><span>(<span>−2</span>)</span></span></span>+<span><span>(3)</span><span>(<span>−2</span>)</span></span></span>+6</span></span><span>=
<span><span><span>16+<span><span>(8)</span><span>(<span>−2</span>)</span></span></span>+<span><span>(3)</span><span>(<span>−2</span>)</span></span></span>+6</span></span><span>=
<span><span><span>16+<span>−16</span></span>+<span><span>(3)</span><span>(<span>−2</span>)</span></span></span>+6</span></span><span>=<span><span>0+<span><span>(3)</span><span>(<span>−2</span>)</span></span></span>+6</span></span><span>=<span><span>0+<span>−6</span></span>+6</span></span><span>=
<span><span>−6</span>+6</span></span><span>=
<span>0</span></span>
