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Fully factorise x² – 36
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4 votes
Fully factorise x² – 36

User Andban
by
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1 Answer

3 votes

Answer:

(x+6)(x-6)

Explanation:

This is the diff of 2 perfect squares

(x+6)(x-6)

If you expand that you'll get:

x^2-6x+6x-36

the -6x and 6x cancel out

x^2-36

User Preinheimer
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