Step-by-step explanation:
1. Question: x² + 5x -6 =0
Answer: x²+2x+3x-6
x(x+2)-3(x+2)
( x-3) (x+2)
x-3=0. x+2=0
x=3. x=-2
2. Question: n²+16=-8n
Answer: n²+8n+16=0
n²+4n+4n+16
n(n+4)+4(n+4)
(n+4) (n+4)
n+4=0. n+4=0
n=-4. n=-4
hope this helps you
have a great day :)
