3 years ago

What is the coefficient of the second term in this expression? -1 - 8s2?

Mathematics

1 answer:

mojhsa [17]3 years ago

7 0

Answer:

Step-by-step explanation:

i hope this helps :)

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In the form of the matrice, how do you work out the following simultaneous equation?

lapo4ka [179]

$\left[\begin{array}{ccc}1&3&7\\1&1&1\end{array}\right]$
multiply 2nd row by -1 and add to first row
$\left[\begin{array}{ccc}0&2&6\\1&1&1\end{array}\right]$
divide the 1st row by 2
$\left[\begin{array}{ccc}0&1&3\\1&1&1\end{array}\right]$
multiply the first row by -1 and add to 2nd row
$\left[\begin{array}{ccc}0&1&3\\1&0&-2\end{array}\right]$

now we know
y+3=0
x-2=0

therefor
y=-3
x=2

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