callaway12x callaway12x
  • 01-03-2017
  • Mathematics
contestada

What number should be added to the expression x2 + 4x to change it into a perfect square trinomial?

Respuesta :

morgaine816
morgaine816 morgaine816
  • 01-03-2017
4. Then you have x^2+4x+4 which gives you (x+2)(x+2) when you factor it.
Answer Link
michelpantoja07 michelpantoja07
  • 01-03-2017
ax^2+bx+x=0 so divide it by two
 x^2+4x+4(b=4, 4/2 is 2 and 2^2 is 4 that's the number
Answer Link

Otras preguntas

If 6x −3 = −5x +7, then x =? Can someone explain this one?
how far away is all 9 planets from the sun
Michelle has $12.30 in her purse in 1 cent 5 cent and 25 cent coins. if she has an equal number of each coin type how many coins does Michelle have in her purse
15 times what equals 45
Of the model cars manufactured in September,1/5 were models of NASCAR cars and 1/3 were world were 2 vintage models.how many cars manufactured in September were
one way that animals adapt to seasonal change
A ball is thrown into the air with an upward velocity of 44 ft/s. Its height h in feet after t seconds is given by the function [tex]h=-16t ^{2} +44t+9[/tex]. W
13/20-3/10 estimate: closer to 1 or 0?
What is a sound wave?
How long does water evaporation take? What factors influence it?