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Question
Solve the matrix equations:
[2x 3] `[[1 2],[-3 0]] , [[x],[8]]=0`
Solution
[2x 3] `[[1 2],[-3 0]] , [[x],[8]]=0`
⇒[2x−9 4x] `[[x],[8]]=0`
⇒[x(2x−9)+32x]=0
`⇒[2x^2−9x+32x]=0`
`⇒[2x^2+23x]=0`
`⇒2x^2+23x=0`
⇒x(2x+23)=0
⇒x=0 or x= `-23/2`
∴x=0 or x= `-23/2`
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