Question

Factorise;
2x^2 - 32y^2 ​

Answer 1

2(x^2-16y^2)

Explanation:

Answer 2

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Answer:

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

Explanation:

Once you factor out the common factor of 2, what remains is the difference of squares. That can be factored further.

The factoring of the difference of squares is ...

a² -b² = (a -b)(a +b)

Then we have ...

2x² -32y² = 2(x² -16y²) = 2(x² -(4y)²)

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