а²+4а=5
а²+4а-5=0
D=4²-4*(-5)=16+20=36=6²
a1=(-4+6)/2=2/2=1
a2=(-4-6)/2=-10/2=-5
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
а²+4а=5
а²+4а-5=0
D=4²-4*(-5)=16+20=36=6²
a1=(-4+6)/2=2/2=1
a2=(-4-6)/2=-10/2=-5