Question

How to solve this math problem

Answer 1

j = 3 or j = -13

Explanation:

Step 1:

Subtract 11 from both sides

`j^(2)`+10j-28-11=11-11

`j^(2)`+10j-39=0

Step 2:

Factor Left side of equation

(j-3)(j+13)=0

Step 3:

Set Factors equal to 0

j-3=0 or j+13=0

j=3 or j=-13