Factorise- k²-12k-36
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4
k²-6k-6k-36
k(k-6)-6(k-6)
(k-6)(k-6)
(k-6)²
k(k-6)-6(k-6)
(k-6)(k-6)
(k-6)²
Answered by
1
k2-12k-36
=k2-2×6×k-6×6
=(k-6)(k-6)
=k2-2×6×k-6×6
=(k-6)(k-6)
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