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Welcome to Bytelearn!
Let’s check out your problem:
Solve for
z
z
z
.
\newline
−
2
z
=
−
z
+
5
\sqrt{\,-2z} = \sqrt{\,-z + 5}
−
2
z
=
−
z
+
5
\newline
z
=
_
_
_
_
_
z = \,\_\_\_\_\_
z
=
_____
View step-by-step help
Home
Math Problems
Precalculus
Solve radical equations
Full solution
Q.
Solve for
z
z
z
.
\newline
−
2
z
=
−
z
+
5
\sqrt{\,-2z} = \sqrt{\,-z + 5}
−
2
z
=
−
z
+
5
\newline
z
=
_
_
_
_
_
z = \,\_\_\_\_\_
z
=
_____
Square both sides:
Square both sides of the equation to eliminate the square roots.
\newline
(
−
2
z
)
2
=
(
−
z
+
5
)
2
(\sqrt{-2z})^2 = (\sqrt{-z + 5})^2
(
−
2
z
)
2
=
(
−
z
+
5
)
2
\newline
−
2
z
=
−
z
+
5
-2z = -z + 5
−
2
z
=
−
z
+
5
Add
z
z
z
terms:
Add
z
z
z
to both sides to get all the
z
z
z
terms on one side.
\newline
–
2
z
+
z
=
–
z
+
z
+
5
–2z + z = –z + z + 5
–2
z
+
z
=
–
z
+
z
+
5
\newline
–
z
=
5
–z = 5
–
z
=
5
Multiply by
−
1
-1
−
1
:
Multiply both sides by
−
1
-1
−
1
to solve for
z
z
z
.
−
1
×
(
-
z
)
=
−
1
×
5
-1 \times (\text{-}z) = -1 \times 5
−
1
×
(
-
z
)
=
−
1
×
5
z
=
-
5
z = \text{-}5
z
=
-
5
More problems from Solve radical equations
Question
What is the domain of this function?
\newline
y
=
x
y = \sqrt{x}
y
=
x
\newline
Choices:
\newline
{
x
∣
x
≥
0
}
\{x|x \geq 0\}
{
x
∣
x
≥
0
}
\newline
{
x
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≤
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\{x|x \leq 0\}
{
x
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x
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}
\newline
{
x
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x
<
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}
\{x | x < 0\}
{
x
∣
x
<
0
}
\newline
{
x
∣
x
>
0
}
\{x|x>0\}
{
x
∣
x
>
0
}
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Posted 1 year ago
Question
Find the real-number root.
\newline
16
\sqrt{16}
16
\newline
\newline
Write your answer in simplified form.
\newline
_
_
_
_
\_\_\_\_
____
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Posted 1 year ago
Question
Find the real-number root.
\newline
9
16
\sqrt{\frac{9}{16}}
16
9
\newline
Simplify your answer and write it as a decimal or as a proper or improper fraction.
\newline
_
_
_
_
_
\_\_\_\_\_
_____
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Posted 1 year ago
Question
Find the real-number root using a calculator. Round your answer to the nearest thousandth.
\newline
`\sqrt{957} `
\newline
_______
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Posted 1 year ago
Question
Multiply. Write your answer in simplest form.
\newline
273
×
42
\sqrt{273} \times \sqrt{42}
273
×
42
\newline
______
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Posted 1 year ago
Question
Simplify.
\newline
63
4
\sqrt{\frac{63}{4}}
4
63
\newline
______
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Posted 1 year ago
Question
Simplify. Rationalize the denominator.
\newline
−
4
9
−
2
\frac{-4}{9 - \sqrt{2}}
9
−
2
−
4
\newline
______
Get tutor help
Posted 1 year ago
Question
Solve for
z
z
z
.
\newline
16
=
z
16 = \sqrt{z}
16
=
z
\newline
z
=
z =
z
=
_____
Get tutor help
Posted 1 year ago
Question
Solve for
p
p
p
.
\newline
8
=
p
8 = \sqrt{p}
8
=
p
\newline
p
=
p =
p
=
_____
Get tutor help
Posted 1 year ago
Question
Solve for
p
p
p
.
\newline
4
p
=
10
+
3
p
\sqrt{4p} = \sqrt{10 + 3p}
4
p
=
10
+
3
p
\newline
p
=
p =
p
=
_____
Get tutor help
Posted 9 months ago
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