2x square -kx +1 solve for k
Answers
Answered by
0
Step-by-step explanation:
First add 1 to each side
2
x
2
+
4
x
+
2
=
1
Then divide each side by two:
x
2
+
2
x
+
1
=
1
2
Then you see that
x
2
+
2
x
+
1
=
(
x
+
1
)
2
(
x
+
1
)
2
=
1
2
Take the square root of each side:
x
+
1
=
1
√
2
x
=
1
√
2
−
1
=
√
2
−
2
2
Answered by
0
Answer:
2x + 1/x
Step-by-step explanation:
2x² - kx + 1 = 0
2x² + 1 = kx
k = 2x + 1/x
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