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rodikova [14]
3 years ago
9

Please help for both of these questions! its due soon! i'll mark brainlist

Mathematics
1 answer:
Vsevolod [243]3 years ago
7 0
For the first question the answer is
X=-9 or X=10

First you factor the left side of the question
(X+9)(X-10)=0 then u set factors equal to zero
X+9=0 or x -10=0
X=-9 or X=10
Now for question two is the second bubble of answer
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given equation,

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writing in matrix form

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\begin{bmatrix}1 &1 \\ 9 &-1 \end{bmatrix} \begin{bmatrix}x\\ y\end{bmatrix}=\begin{bmatrix}17\\73 \end{bmatrix}

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