And whats the rest of the question
it is 3.742, 3.742, 14.142
Isolate the radical, then raise each side of the equation to the power of its index.
Exact Form:
x
=
3
+
√
5
2
,
3
−
√
5
2
x
=
3
+
5
2
,
3
-
5
2
Decimal Form:
x
=
2.61803398
…
,
0.38196601
…
Answer: 22y and 9y+13y
Step-by-step explanation: Just using basic math, ofc
1st Answer: 9y + 9y = 18y .
18y + 4y = 22y
2nd Answer: 9y + 10y = 19y .
19y + 3y = 22y
c
All the information you need is in the quadratic trinomial ... Read from right to left:
Find factors of 49 which ADD (+) to give 14.
These will be 7
and
7 because:
7
×
7
=
49
and
7
+
7
=
14
The + sign shows that the signs in the brackets will be the SAME, the minus (-) shows that they will be negative:
(
x
−
7
)
(
x
−
7
)
=
(
x
−
7
)
2
