(3x-1)²+(3x-2)(3x+1) Simplify
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Answer:
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Answer:
18x² –9x –1
Explanation:-
=(3x)²+(1)²– 2(3x) 1 + 3x (3x +1) –2(3x+1)
= 9x² +1 – 6x + 9x² + 3x –6x –2
on rearranging we get,
= 9x²+9x² –6x –6x +3x +1–2
= 18x² –9x – 1
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