+0  
 
-2
49
5
avatar

The roots of the quadratic x^2+8x+4 are the same as the roots of the quadratic Ax^2+Bx+1. What is A + B?

 Apr 5, 2020
 #1
avatar
0

A + B = 1/2 + 4 = 9/2.

 Apr 5, 2020
 #2
avatar+52 
+1

That is incorrect. Try to explain how you got 1/2 and 4.

 #3
avatar+1956 
+1

We will divide all of these by 4..

 

1/4x^2+2x+1

A=1/4

B=2

 

So, A+B=2.25.

 Apr 5, 2020
 #5
avatar+52 
0

Yep! That's the same answer that I got. Good job!

 #4
avatar+46 
+1

Hmm...

I think what Guest meant to do was divide the first quadratic by 4, which gets us

\(\frac{1}{4}x^2+2x+1\)

a=1/4

b=2

So add them up and get

1/4+2=9/4, or 2.25

 

XD

 Apr 5, 2020

15 Online Users