Answer:
4
Step-by-step explanation:
Explanation:
D
=
d
2
=
b
2
−
4
a
c
=
100
+
96
=
196
-->
d
=
±
14
There are 2 real roots:
x
=
−
b
2
a
±
d
2
a
=
10
6
±
14
6
=
5
3
±
7
3
The positive real root is :
12
3
=
4
Answer:
6n-3
Step-by-step explanation:
Because the gap between 3 and 9 is six and to and so to get fom 6 to 3 you have to minus 3
Answer:
x = 11
Step-by-step explanation:
4x + 7 = 3 (2x - 5)
4x + 7 = 6x - 15
-2x + 7 = -15
-2x = -22
x = 11
