macboone macboone
  • 21-06-2016
  • Mathematics
contestada

What value of b makes the polynomial x2+bc+16 a perfect square

Respuesta :

olemakpadu
olemakpadu olemakpadu
  • 27-06-2016
For a perfect square

b² = 4*a*c

Comparing ax² + bx + c = 0 to x² + bx + 16

a = 1,    c = 16

b² = 4*a*c

b² = 4*1*16

b² = 64

b = √64

b = 8

The value of b = 8.
Answer Link

Otras preguntas

Please write me a page summary on successful qualities
Which of these would be the BEST solution for Jennifer? a: Have a friend vote for her. b: Cast her vote by absentee ballot. c: Ask if the election can be post
How many ways can 15 horses finish 1st, 2nd, and 3rd in a race? Is this a combination or permutation?
Which graph represents y=√x
The radius of a circle is 4.5 in. Find the circumference to the nearest tenth
Statistics: Hypothesis Testing Please include the null hypothesis, alternate hypothesis, and p-value. (image attached below)
Combine the phrases to form complete sentences. Drag the items on the left to the correct location on the right.
This another one that i am having trouble on!!!
I need help I don’t get this.
Is the study of plate tectonics in oceonography considered physical or geological?​