Question

3x²-12y²

Answer 1

\(3x^2-12y^2\)
\(=\left(-3\right)\left(2y-x\right)\left(2y+x\right)\)

Answer 2

3x²-12y²

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

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Answer 3

3x²-12y²=(3x+12y)(3x-12y)

Answer 4

\(3x^2-12y^2=3\left(x^2-4x^2\right)=3\left(2-2x\right)\left(2+2x\right)\)