Math, asked by irfan12349, 5 months ago

factorise (z²-z-3)(z²-z+1)+4​

Answers

Answered by buzoman
1

Answer:

z^{4}-2z^{3}-z^{2}+2z+1

Step-by-step explanation:

( z ^ { 2 } - z - 3 ) ( z ^ { 2 } - z + 1 ) + 4

z^{4}-2z^{3}-z^{2}+2z-3+4

z^{4}-2z^{3}-z^{2}+2z+1

Answered by bulisaikia08
1

Answer:

z^4+z+1

Step-by-step explanation:

(z^2-z-3)(z^2-z+1)+4

= (z^4+z-3)+4

= z^4+z+1

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