Question

the question 9 please

Answer 1

further part continued here.......
x² + 12x - 69
D = b² - 4ac
D = 144-4*1*-69
D= 144+276
D=420
x = -b ± √D / 2a
x = -12±√420/2
x = -12±2√105/2
x= -6±√105

Answer 2

Hey friend,

Here is your answer,

The abscissa of the other point is
-6 ± √105 (ans)

Therefore the coordinate of the other point is,
B = (-6±√105 , -1)


Hope it helps you.
Thank you.