55. 2x2 +16x +10
59. 2(x + y)2 - 9(x + y) - 5
Factorise
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Answer:
55. 16x+14
59. -5x-5y-5
Step-by-step explanation:
55.4+16x+10=16x+14
59. (2x+2y)×2-9x-9y-5
= 4x+4y-9x-9y-5
= -5x-5y-5
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