2y^2-40y=-192
obliczenia.
2y²-40y=-192
2y²-40y+192=0
a=2
b=-40
c=192
Δ=b²-4ac
Δ=(-40)²-4*2*192
Δ=1600-1536
Δ=64
√Δ=√64=8
x₁=(-b-√Δ)/2a=(40-8)/4=8
x₂=(-b+√Δ)/2a=(40+8)/4=12
2y^2-40y+192=0
2(y^2-20y+96)=0
delta= 400-4*1*96=16
y1=(20-4)/2=8
y2=(20+4)/2=12
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2y²-40y=-192
2y²-40y+192=0
a=2
b=-40
c=192
Δ=b²-4ac
Δ=(-40)²-4*2*192
Δ=1600-1536
Δ=64
√Δ=√64=8
x₁=(-b-√Δ)/2a=(40-8)/4=8
x₂=(-b+√Δ)/2a=(40+8)/4=12
2y^2-40y=-192
2y^2-40y+192=0
2(y^2-20y+96)=0
delta= 400-4*1*96=16
y1=(20-4)/2=8
y2=(20+4)/2=12