I need points so I can ask my question hope you get your answer
Subtract 7 from both sides
x^2 - 6x - 7 = 7 - 7
Simplify
x^2 - 6x - 7 = 0
Answer :
The final solutions to the quadratic equation are:
x = 7, -1
BC is equal to KL so there for BC is 6 cm
$3.52
That's the right answer.
Your welcome