llm
Answered on
We have,
y²+42=13y
y² - 13y + 42 = 0
By using middle-term spilt method
y² - 7y - 6y + 42 = 0
Taking common,
y(y-7) - 6(y-7) = 0
(y -7) (y-6) = 0
Let, y - 7 = 0
y = 7
And, let y - 6 = 0
y = 6
