Answer:
x=4<u>+</u> 2root14/4
by using quadratic formula
Hi! i’m not sure what the question is, could you please include that?
david's procedure is correct becsuse Keisha didnt put the correct value of sin theta in equation, she forgot to mention negative sign. though solution are same but in other case it could have gone wrong
2×-2=-4
-4 × -2 = 8
8 × -2 =-16
-16×-2 =32
32 ×-2 = -64.
therefore the answer is -2.