Question

(3x+1/3x) (3x-1/3x)
(Expansion)

Answer 1

Answer:

9x²-(1/9x²)=(81x⁴-1)/9x²

Step-by-step explanation:

we know that,

(a+b)(a-b)=a²-b²

here,

(3x+1/3x) (3x-1/3x)

=(3x)²-(1/3x)²

=9x²-(1/9x²)

=(81x⁴-1)/9x²

HOPE IT HELPS,

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Answer 2

Answer:

9x-(1/9x)=(81 x*-1)/9x

Step-by-step explanation:

we know that

(a+b)(a-b)=a-b2

here,

(3x+1/3x) (3x-1/3x)

=(3x)-(1/3x)

=9x²-(1/9x) =(81x-1/9x

Hope it helps

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