3x²-x-2=0
Δ=1+24=25 (Δ=b²-4ac)
x₁,₂=
x1==6/6=1
x2==
so
x1=1
x2=
Step-by-step explanation:
because we can also find out the value of x in second equation like this
3x=21
x=21/3
x=7
Answer:
-1=p
8=8p+13-3p
8-13=8p-3p
-5=5p
-5÷5=5p÷5