Question

solve by completing square b²+2b = -20​

Answer 1

b²+2b = -20

2+2−(−20)=0

=1

=2

=20

=−2± √2²-4⋅1⋅20/2⋅1

=−2±√−76/2

result is no solution

Answer 2

Step-by-step explanation:

https://www.tiger-algebra.com/drill/b2-2b-3=0/

This is completely safe!!!

It is in step-by-step instructions...