Q. 135.0( 3 Votes )

# Square of 3x – 4y isA. 9x2 – 16y2B. 6x2 – 8y2C. 9x2 + 16y2 + 24xyD. 9x2 + 16y2 - 24xy

To find square of (3x – 4y) using formula –

(a – b)2=a2 + b2 – 2ab

here, a = 3x and b= 4y

(3x – 4y)2= (3x)2 + (4y)2 – 2× (3x)×(4y)

(3x – 4y)2= 9x2 + 16y2 – 24xy

Option (a) does not match to our solution.

Option (b) does not match to our solution.

Option (c) does not match to our solution.

Option (d) does match to our solution.

So, option (d) is correct answer.

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