Sums of Roots of Equations

Submitted by ladislav.foltyn on Mon, 02/18/2019 - 10:57
Project ID: 
6000000017
Accepted: 
SubArea: 
Quadratic equations and inequalities
Type: 
Match
Layout: 
6x6
Question: 
Match the equations with sums of their roots.
Questions Title: 
Equations
Answers Title: 
Sums of roots
Question 1: 
x2−1x−1=0
Answer 1: 

−1

Question 2: 
5x2−2=0
Answer 2: 

0

Question 3: 
x+3x−5=x+5x−3
Answer 3: 

{The equation has no roots, so the sum of roots does not exist.}

Question 4: 
x2−8x+15x−3=3
Answer 4: 

8

Question 5: 
x2+x−6x2−2x−15=4
Answer 5: 

6

Question 6: 
−2x2+8x−4=0
Answer 6: 

4

Tex: 
% tiket 32784 \NastavOD{2}