" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
9x²-30x+25-9x+15=0
9x²-39x+40=0
Δ=1521-1440=81
√Δ=9
x₁=38,5
x₂=39,5
x₁ i x₂ to rozwiązania równania.