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A) 18c^2 – 2(3c – 1)^2

В) (2a +3)(a −3) – 2a(4 – 6a)
С) (2x + 3)(3 —2x) - (2x – 5)^2 –10x​

User Jessica
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Sorry,

For a), 18c^2 - 18c^2 = 0

Not = 36c^2

A) 18c^2 – 2(3c – 1)^2 В) (2a +3)(a −3) – 2a(4 – 6a) С) (2x + 3)(3 —2x) - (2x – 5)^2 –10x-example-1
A) 18c^2 – 2(3c – 1)^2 В) (2a +3)(a −3) – 2a(4 – 6a) С) (2x + 3)(3 —2x) - (2x – 5)^2 –10x-example-2
User Slazer
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