of code. (15 points) -5 a+7 b+9 c=-25 7 b+6 c=17 -3 a+6 b+2 c=-13 ii. Write a matlab code to solve the below second order equation in matlab to find the variable z. Write explanation/comment for each line of code. (10 points) 8 z^{2}+2 z-3=0
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