Ответ:
(2-x)²-x(x+1,5)=4
↓
(a-b²=a²-2ab+b²
4-4x+x²-x*(x+1,5)=4
4-4x+x²-x²-1,5x=4
4-4x-1,5x=4
-4x-1,5x=0
-5,5x=0
x=0
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Verified answer
Ответ:
(2-x)²-x(x+1,5)=4
↓
(a-b²=a²-2ab+b²
↓
4-4x+x²-x*(x+1,5)=4
↓
4-4x+x²-x²-1,5x=4
↓
4-4x-1,5x=4
↓
-4x-1,5x=0
↓
-5,5x=0
↓
x=0