Answer:
Step-by-step explanation:
a) 4x² + 20 = 0
4x² = -20
x² = -20/4
x² = -5 = i² *5
x = √i²5
x = i√5
b) 4x² + 5 = -7
4x² = -7 - 5
4x² = - 12
x² = -12/4
x² = -3 = 3i²
x = i√3
c) x² + 4x + 20 = 0
a = 1 ; b =4 ; c =20
= (-2 +4i) & -12/2
= (-2 + 4i) and (-6)
Answer:
(-2, 5) or x = -2, y = 5.
Step-by-step explanation:
Using the Midpoint formula:
M =
and using the coordinates in your given question:
(-5, 6) and (7, 2):
The midpoint (or halfway point) between (-5, 6) and (7, 2) is:
M = =
To determine what is 1/4 of the way between points (-5, 6) and (7, 2), we can use Midpoint Formula to find the halfway point between one (-5, 6) and (1, 4):
M =
M = = (-2, 5).
Therefore, the 1/4 of the way between points (-5, 6) and (7, 2) is (-2, 5).