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Welcome to Bytelearn!
Let’s check out your problem:
Solve for
f
f
f
.
\newline
7
−
2
f
=
−
9
f
\sqrt{7 - 2f} = \sqrt{-9f}
7
−
2
f
=
−
9
f
\newline
f
=
f =
f
=
_____
View step-by-step help
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Math Problems
Precalculus
Solve radical equations
Full solution
Q.
Solve for
f
f
f
.
\newline
7
−
2
f
=
−
9
f
\sqrt{7 - 2f} = \sqrt{-9f}
7
−
2
f
=
−
9
f
\newline
f
=
f =
f
=
_____
Write Equation:
Write down the equation.
7
−
2
f
=
−
9
f
\sqrt{7 - 2f} = \sqrt{-9f}
7
−
2
f
=
−
9
f
We need to solve for
f
f
f
.
Square Both Sides:
Square both sides of the equation to eliminate the square roots.
\newline
(
7
−
2
f
)
2
=
(
−
9
f
)
2
(\sqrt{7 − 2f})^2 = (\sqrt{−9f})^2
(
7−2
f
)
2
=
(
−9
f
)
2
\newline
7
−
2
f
=
−
9
f
7 − 2f = −9f
7−2
f
=
−9
f
\newline
This step removes the square roots.
Add
9
9
9
f:
Add
9
f
9f
9
f
to both sides of the equation to get all the
f
f
f
terms on one side.
\newline
7
−
2
f
+
9
f
=
−
9
f
+
9
f
7 - 2f + 9f = -9f + 9f
7
−
2
f
+
9
f
=
−
9
f
+
9
f
\newline
7
+
7
f
=
0
7 + 7f = 0
7
+
7
f
=
0
\newline
This step simplifies the equation.
Subtract
7
7
7
:
Subtract
7
7
7
from both sides of the equation to isolate the term with
f
f
f
.
\newline
7
+
7
f
−
7
=
0
−
7
7 + 7f - 7 = 0 - 7
7
+
7
f
−
7
=
0
−
7
\newline
7
f
=
−
7
7f = -7
7
f
=
−
7
\newline
This step isolates the
f
f
f
term.
Divide by
7
7
7
:
Divide both sides of the equation by
7
7
7
to solve for
f
f
f
.
7
f
7
=
−
7
7
\frac{7f}{7} = \frac{-7}{7}
7
7
f
=
7
−
7
f
=
−
1
f = -1
f
=
−
1
This step gives us the value of
f
f
f
.
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\newline
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x
y = \sqrt{x}
y
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\newline
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\newline
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\newline
16
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\newline
\newline
Write your answer in simplified form.
\newline
_
_
_
_
\_\_\_\_
____
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Find the real-number root.
\newline
9
16
\sqrt{\frac{9}{16}}
16
9
\newline
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\newline
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_
_
_
_
\_\_\_\_\_
_____
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Find the real-number root using a calculator. Round your answer to the nearest thousandth.
\newline
`\sqrt{957} `
\newline
_______
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Multiply. Write your answer in simplest form.
\newline
273
×
42
\sqrt{273} \times \sqrt{42}
273
×
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\newline
______
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Question
Simplify.
\newline
63
4
\sqrt{\frac{63}{4}}
4
63
\newline
______
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Question
Simplify. Rationalize the denominator.
\newline
−
4
9
−
2
\frac{-4}{9 - \sqrt{2}}
9
−
2
−
4
\newline
______
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Posted 1 year ago
Question
Solve for
z
z
z
.
\newline
16
=
z
16 = \sqrt{z}
16
=
z
\newline
z
=
z =
z
=
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Question
Solve for
p
p
p
.
\newline
8
=
p
8 = \sqrt{p}
8
=
p
\newline
p
=
p =
p
=
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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
=
_____
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