Zadanie w zalaczniku
a) D: R\(-2)
0=x²+2x
Δ= x²-4*1*0
Δ=4
√Δ=2
x₁= -2-2 / 2 = -2
x₂= -2+2 / 2 = 0
Mz= y=0 dla x= -2 lub 0
b) D=R\(-5,-3,3)
x²+10x+25=0
Δ= 10²-4*1*25
Δ= 100-100
Δ=0
x= -10/2
x= -5
lub
|x|-3=0
|x|=3
x=3
Mz= y=0 dla x= -5 lub 3
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a) D: R\(-2)
0=x²+2x
Δ= x²-4*1*0
Δ=4
√Δ=2
x₁= -2-2 / 2 = -2
x₂= -2+2 / 2 = 0
Mz= y=0 dla x= -2 lub 0
b) D=R\(-5,-3,3)
x²+10x+25=0
Δ= 10²-4*1*25
Δ= 100-100
Δ=0
x= -10/2
x= -5
lub
|x|-3=0
|x|=3
x=3
Mz= y=0 dla x= -5 lub 3