(3x - 1)² - (3x - 2) ( 3x + 1 )
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Answered by
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Answer:
(3x-1)^2 - (3x-2)(3x+1)
= 9x^2 - 6x + 1 - (9x^2 + 3x - 6x -2)
= 9x^2 - 6x + 1 - 9x^2 - 3x + 6x + 2
= -3x + 3
Step-by-step explanation:
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Answered by
1
Step-by-step explanation:
Solution:-
(3x - 1)² - (3x - 2) ( 3x + 1 )
= 9x²-6x+1-(9x²+3x-6x-2)
= 9x²-6x+1-9x²+3x+2
= -3x+3
The formula used here is:-
(a - b)² = a²- 2ab + b²
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