2i^2-i-3 factorise pls tell fast plss
Answers
Answered by
3
Step-by-step explanation:
Given:-
2 i^2 - i - 3
To find:-
Factorise the expression 2 i^2 - i - 3
Solution:-
Given expression is 2 i^2 - i - 3
It can be written as
=> 2 i^2 + 2i - 3i -3
=> 2i ( i + 1 ) - 3 ( i + 1 )
=> ( i + 1 ) ( 2i - 3 )
Answer:-
2 i^2 - i - 3 = ( i + 1 ) ( 2i - 3 )
Check:-
( i + 1 ) ( 2i - 3 )
=> i ( 2i - 3 ) + 1 ( 2i - 3 )
=> 2 i^2 - 3i + 2i - 3
=> 2i^2 - i - 3
Answered by
2
Step-by-step explanation:
Here is your answer:
=2i²–i–3
=2i²–2i+3i–3
=2i(i–1)+3(i–3)
=(i–1)(2i+3)
This might be the correct answer
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