rozwiazaniem rownania bedzie 2xdo potegi3=4xdo potegi2
a.x=0
b.x=2
c.x=1
d.x=4
2]rozwiazaniem rownania xdo potegi3-3xkwadrat-4x+12=0 bedzie
a.-2
b.3
c.2
d.4
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a)
2x³=4x²
2x³-4x²=0
2x²(x-2)=0
x=0 ∨ x=2
a,b
b)
x³-3x²-4x+12=0
x²(x-3)-4(x-3)=0
(x²-4)(x-3)=0
(x+2)(x-2)(x-3)=0
x=-2 ∨ x=2 ∨ x=3
a,b,c