addelializWarnell addelializWarnell
  • 01-12-2016
  • Mathematics
contestada

Please help! Find the value of C such that each expression is a perfect-square trinomial.

p^2-30p+c


k^2-5k+c

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 01-12-2016
for ax^2+bx+c
when a=1
take 1/2 of b and square it
that is what c should be ideally

p^2-30p=c
-30/2=-15
(-15)^2=225
c=225
(p-15)^2 is factored form


k^2-5k+c
-5/2
(-5/2)^2=25/4
c=25/4
factored form is (x-5/2)^2
Answer Link

Otras preguntas

A long, nonconducting, solid cylinder of radius 4.0 cm has a nonuniform volume charge density r that is a function of radial distance r from the cylinder axis:
player 100% X Pri A total of 400 students were surveyed at a college to see if they live in on-campus dorms or if they live off-campus. The table shows the resu
Please help I have a test tomorrow
ejemplo de proteína de membrana para la difusión facilitada ejemplo de proteína para el transporte activo
Which word could refer to bus company whose lines never leave the state
An altar was commissioned to depict the accomplishments of the Roman Emperor Augustus (between 13 and 9 BCE). What was the purpose of this artwork? A.spiritual
Solve for h: 7a=10+2h​
4. The midpoint of XY is (3, -5). The coordinates of point X are (1,5). What are the coordinates of point Y?
What is the name of an immune system response to a substance in food?
What was the first animal to orbit the earth? NEED HELP ASAP