Question

(h - j)2 - 2h(3h - 3j)​

Answer 1

Answer:

2h-2j-6 h²-6hj

6h²-2(j-h) -6hj

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Answer 2

Answer:

$(h - j)2 - 2h(3h - 3j) \\ \\ = (h - j)2 - 2h \times 3(h - j) \\ \\ = (h - j)2 - 6h(h - j) \\ \\ { \pink{ = 2(h - j)(1 - 3h)}}$