Rozwiąż równania
1. x²-4=0
2. (2x-1)(2y+1)-(4x+5)²= -4x-2
x²=4
x=2 lub x=-2
2. (2x-1)(2x+1)-(4x+5)²= -4x-2
4x²-1-4x²-40x-25=-4x-2
-40x-26=-4x-2
-24=36x
x=-2/3
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1. x²-4=0
x²=4
x=2 lub x=-2
2. (2x-1)(2x+1)-(4x+5)²= -4x-2
4x²-1-4x²-40x-25=-4x-2
-40x-26=-4x-2
-24=36x
x=-2/3