rozwiaz rownanie x2+8x+15>0
x2+8x+15>0
2x+8x>0-15
10x>-15 / : 10
x> -1.5
zadanie z deltą
a=1 b=8 c=15
Δ=b2-4ac
Δ=64-4*1*15=64-60=4
√Δ=2
x1=-b-√Δ : 2*a x2=b+√Δ : 2*a
x1= -8-2 : 2*1 x2=8+2 :2*1
x1= -6 : 2 x2= 10 : 2
x1= -3 x2= 5
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x2+8x+15>0
2x+8x>0-15
10x>-15 / : 10
x> -1.5
zadanie z deltą
a=1 b=8 c=15
Δ=b2-4ac
Δ=64-4*1*15=64-60=4
√Δ=2
x1=-b-√Δ : 2*a x2=b+√Δ : 2*a
x1= -8-2 : 2*1 x2=8+2 :2*1
x1= -6 : 2 x2= 10 : 2
x1= -3 x2= 5