rozwiąż nierówność:
a.
x²-4x+4-(x²-25) > -4x-20
-4x+4+25>-4x-20
29>-20
x∈R
b.
4(x²-1)-(4x²-4x+1)>3
-4+4x-1>3
4x>8
x>2
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a.
x²-4x+4-(x²-25) > -4x-20
-4x+4+25>-4x-20
29>-20
x∈R
b.
4(x²-1)-(4x²-4x+1)>3
-4+4x-1>3
4x>8
x>2