Question

Solve using expansion formula:
(3x-2y+4)(3x-2y-4)​

Answer 1

Answer:-

3x(3x-2y+4)-2(3x-2y-4)+4(3x-2y+4)

9x^2-6xy-12x-6xy+4y^2+8y+12x-8y-16

9x^2+4y^2-12xy-16

Explanation:

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