x1=√5
x1=–√5
QUADRATIC
EQUATION:
____________
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x1=√5
x1=–√5
QUADRATIC
EQUATION:
____________
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Answer: x
=
1
or
x
=
−
4
Step-by-step explanation: (
5
−
x
)
1
2
=
x
+
1
∴
√
5
−
x
=
x
+
1
square both sides
∴
(
√
5
−
x
)
2
=
(
x
+
1
)
2
∴
5
−
x
=
x
2
+
2
x
+
1
∴
x
2
+
2
x
+
1
=
5
−
x
∴
x
2
+
2
x
+
x
+
1
−
5
=
0
∴
x
2
+
3
x
−
4
=
0
∴
(
x
−
1
)
(
x
+
4
)
=
0
∴
x
=
1
or
x
=
−
4