Question

if m and n are the roots of the quadratic equation x²-6x+2=0 then find the value of (m+n)²​

Answer 1

Step-by-step explanation:

(m+n)²=(m+n)(m+n)

(m+n)= -b/a= -(-6)/1=6

(m+n)= 6

(m+n)²=6²=36