math problem
@AZ
Multiply each value in the first matrix by -9 and each number in the second matrix by -1
and then just add the numbers that are in the same place |dw:1621034897552:dw|
I just used a 2 by 2 matrix for simplicity but the concept is the same for the 3 x 3 matrix since both are 3x3
18, 18, 0, 18, -27, 18, 36, -27, 36
18, -27, -27, 0, 36, 0, 45, -18, -45
whats next
I'm confused with how you wrote the numbers
-2 -2 0 -2 3 -2 -4 3 -4 that's the first matrix multiply each number by -9
You can even write it out using the equation tool so if you want to quote this message and then replace the numbers with the numbers you get \[-9\left[\begin{matrix}-2 & -2 & 0\\ -2 & 3& -2\\ -4 & 3& -4 \end{matrix}\right] = ~?\]
and then for the second matrix, you multiply all the numbers by -1 Because it's (-1) * B
thanks I solved it
You're welcome :)
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