Question

if 2 is a root of x2+5x+r=0, then r=​

Answer 1

Answer:

r = -14

Step-by-step explanation:

= 2^2 + 5*2 + r = 0

= 4 + 10 + r = 0

= 14 + r = 0

= r = 0 - 14

So, r = -14

Answer 2

=>2^2 + 5(2) + r = 0
=> 4 + 10 + r = 0
r = 0-14 = -14