Q. Find m+n? if a. (x+m)(x+n)=x^2+5x+mn b. mn=some value..,
Options
1) a is enough to derive the answer
2) b is enough
3) Both r needed
4) Can't find using two

• (x+m)(x+n)=x^2+5x+mn
  => x^2+(m+n)x+mn= x^2+5x+mn
  => (m+n)=5
  
  1.a is enough to derive the answer
  
• 11 years agoHelpfull: Yes(32) No(0)
• a is enough
  
• 11 years agoHelpfull: Yes(4) No(0)
• a is enough.
  
• 11 years agoHelpfull: Yes(4) No(1)
• a is enough
  
• 11 years agoHelpfull: Yes(2) No(0)
• b is enough...2*2=4 so m+n=4 where m=2,n=2
• 11 years agoHelpfull: Yes(0) No(9)
• pls explain?? @ shiva
• 11 years agoHelpfull: Yes(0) No(0)
• a is enough
  
• 11 years agoHelpfull: Yes(0) No(0)
• both are needed
• 11 years agoHelpfull: Yes(0) No(3)
• a is enough bcoz roots of eqn is = to -b if eqn is ax^2+bx +c
• 11 years agoHelpfull: Yes(0) No(0)
• a is enough
  
• 11 years agoHelpfull: Yes(0) No(0)
• a is enough to derive the answer
• 10 years agoHelpfull: Yes(0) No(0)