Resolve into factors: 4(x+2y)2 – 15(x+2y) +9
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Answer:
-7x - 14y + 9
Step-by-step explanation:
(((4•(x+2y))•2)-15•(x+2y))+9
((4•(x+2y)•2)-15•(x+2y))+9
8 • (x + 2y) - 15 • (x + 2y)) + 9
-7x - 14y + 9 = -1 • (7x + 14y - 9)
-7x - 14y + 9
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