Calculus-calculating tangents please help?

Question

can somone help me with this one time i got one answer but im told im doing it wrong

y = 7.69x2 - 3.42 Determine the positions on the curve (x,y), of all tangents that pass through the point (-7,-37.34). Enter none if no tangent exists.

ENTER THE LEFT-MOST TANGENT POINT (the one with the lowest x-value) IN THE FIRST BOX!

Round all values to FOUR decimal places, using the normal convention.

Left-most tangent point (x,y) =

Right-most tangent point (x,y) =

Answer 1

(x,y)=(-14.3088,1571.047)

(x,y)=(0.3088,-2.6866)