Answer:
x can have two complex solutions, which are:
-2 + i
-2 - i
Step-by-step explanation:
2x² + 8x + 10 = 0
4x² + 16x + 20 = 0
4x² + 16x + 16 = -4
(2x + 4)² = -4
2x + 4 = √-4
2x = -4 ± i√4
2x = -4 ± 2i
x = -2 ± i
So x is equal to -2 + i and -2 - i.
Simply substitute the value of
3
given. In other words,
f
(
3
)
is the function of
f
(
x
)
, however, in this case,
x
is
3
f
(
3
)
=
3
(
3
)
−
4
Distribute
3
through the parenthesis
f
(
3
)
=
9
−
4
Simplify
f
(
3
)
=
5
Answer:
the top one, (-1,3)
Step-by-step explanation:
Answer:13
Step-by-step explanation:
2(7)-3
Answer:
Step-by-step explanation:
5= 31(x +7)
5= 31x + 217
5 - 217 = 31x + 217 - 217
212 = 31x
212/31 = 31x/31
212 = x
x= 212
