The quadratic equation you provided has
so the discriminant b²-4ac is ...
... b² - 4ac = (-3)² -4(-2)(8) = 9 + 64 = 73
The discriminant is positive, so there are two real solutions to the given equation.
Sure what is the question?
Angle BDC is complementary
Answer:
20
Step-by-step explanation:
3:2=30:x
30/3=10
2*10=20
Answer:
-1
Step-by-step explanation:
Given the equation:
Substitute into this equation:
Subtract 4: