(2-4x)^
(a-b)²=a²-2ab+b²
(2-4x)²=2²-2*2*4x+(4x)²=4-16x+16x²
licze na naj ;d
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(a-b)²=a²-2ab+b²
(2-4x)²=2²-2*2*4x+(4x)²=4-16x+16x²
licze na naj ;d