=A2+4 A−5I=A×A+4 A−5I[142−3]×[142−3]+4[142−3]−5[1001]=[9−8−417]+[4168−12]−[5005]=[9+4−5−8+16−0−4+8−017−12−5]=[8840]=4[2210]
The matrix A2+4A−5I, where I is identity matrix and A=[142−3], equals :
Held on 9 Apr 2013 · Verified 6 Jul 2026.
4[2210]
4[02−12]
32[2210]
32[1110]
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