rozwiaz rownania:
a)
2x(x-1) - x² = (1 +x)x
b)
(1+x)(2-3x)= 1,5x(1-2x)
Prosze o szybkie rozwiazanie
a) 2x(x-1) - x² = (1 +x)x
2x²-2x-x²=x+x²
-3x=0
x=0
b) (1+x)(2-3x)= 1,5x(1-2x)
2-3x+2x-3x²= 1,5x-3x²
-4,5x=-2
x=2 * 2/9
x=4/9
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a) 2x(x-1) - x² = (1 +x)x
2x²-2x-x²=x+x²
-3x=0
x=0
b) (1+x)(2-3x)= 1,5x(1-2x)
2-3x+2x-3x²= 1,5x-3x²
-4,5x=-2
x=2 * 2/9
x=4/9