Resources
Testimonials
Plans
Sign in
Sign up
Resources
Testimonials
Plans
AI tutor
Welcome to Bytelearn!
Let’s check out your problem:
Solve for
w
w
w
.
\newline
2
w
+
7
=
−
5
w
\sqrt{2w + 7} = \sqrt{-5w}
2
w
+
7
=
−
5
w
\newline
w
=
w =
w
=
_____
View step-by-step help
Home
Math Problems
Precalculus
Solve radical equations
Full solution
Q.
Solve for
w
w
w
.
\newline
2
w
+
7
=
−
5
w
\sqrt{2w + 7} = \sqrt{-5w}
2
w
+
7
=
−
5
w
\newline
w
=
w =
w
=
_____
Square both sides:
Square both sides of the equation to eliminate the square roots.
\newline
(
2
w
+
7
)
2
=
(
−
5
w
)
2
(\sqrt{2w + 7})^2 = (\sqrt{-5w})^2
(
2
w
+
7
)
2
=
(
−
5
w
)
2
\newline
2
w
+
7
=
−
5
w
2w + 7 = -5w
2
w
+
7
=
−
5
w
Add
w
w
w
terms:
Add
5
w
5w
5
w
to both sides of the equation to get all the
w
w
w
terms on one side.
\newline
2
w
+
5
w
+
7
=
−
5
w
+
5
w
2w + 5w + 7 = -5w + 5w
2
w
+
5
w
+
7
=
−
5
w
+
5
w
\newline
7
w
+
7
=
0
7w + 7 = 0
7
w
+
7
=
0
Isolate the w term:
Subtract
7
7
7
from both sides of the equation to isolate the w term.
\newline
7
w
+
7
−
7
=
0
−
7
7w + 7 - 7 = 0 - 7
7
w
+
7
−
7
=
0
−
7
\newline
7
w
=
−
7
7w = -7
7
w
=
−
7
Divide to solve:
Divide both sides of the equation by
7
7
7
to solve for
w
w
w
.
7
w
7
=
−
7
7
\frac{7w}{7} = \frac{-7}{7}
7
7
w
=
7
−
7
w
=
−
1
w = -1
w
=
−
1
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
∣
x
≤
0
}
\{x|x \leq 0\}
{
x
∣
x
≤
0
}
\newline
{
x
∣
x
<
0
}
\{x | x < 0\}
{
x
∣
x
<
0
}
\newline
{
x
∣
x
>
0
}
\{x|x>0\}
{
x
∣
x
>
0
}
Get tutor help
Posted 1 year ago
Question
Find the real-number root.
\newline
16
\sqrt{16}
16
\newline
\newline
Write your answer in simplified form.
\newline
_
_
_
_
\_\_\_\_
____
Get tutor help
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
_
_
_
_
_
\_\_\_\_\_
_____
Get tutor help
Posted 1 year ago
Question
Find the real-number root using a calculator. Round your answer to the nearest thousandth.
\newline
`\sqrt{957} `
\newline
_______
Get tutor help
Posted 1 year ago
Question
Multiply. Write your answer in simplest form.
\newline
273
×
42
\sqrt{273} \times \sqrt{42}
273
×
42
\newline
______
Get tutor help
Posted 1 year ago
Question
Simplify.
\newline
63
4
\sqrt{\frac{63}{4}}
4
63
\newline
______
Get tutor help
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
Related topics
Algebra - Order of Operations
Algebra - Distributive Property
`X` and `Y` Axes
Geometry - Scalene Triangle
Common Multiple
Geometry - Quadrant