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Let’s check out your problem:
Find the zeros of the function
g
(
x
)
=
4
x
2
−
484
g(x)=4x^2-484
g
(
x
)
=
4
x
2
−
484
Enter the solutions from least to greatest.
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Math Problems
Precalculus
Complex conjugate theorem
Full solution
Q.
Find the zeros of the function
g
(
x
)
=
4
x
2
−
484
g(x)=4x^2-484
g
(
x
)
=
4
x
2
−
484
Enter the solutions from least to greatest.
Set Function Equal to Zero:
Set the function equal to zero to find its zeros.
\newline
g
(
x
)
=
4
x
2
−
484
=
0
g(x) = 4x^2 - 484 = 0
g
(
x
)
=
4
x
2
−
484
=
0
Factor Out Common Factor:
Factor out the common factor of
4
4
4
from the equation.
4
(
x
2
−
121
)
=
0
4(x^2 - 121) = 0
4
(
x
2
−
121
)
=
0
Recognize Difference of Squares:
Recognize that
x
2
−
121
x^2 - 121
x
2
−
121
is a difference of squares and can be factored further.
\newline
(
x
2
−
121
)
=
(
x
+
11
)
(
x
−
11
)
(x^2 - 121) = (x + 11)(x - 11)
(
x
2
−
121
)
=
(
x
+
11
)
(
x
−
11
)
Set
Factors
Equal to Zero:
Set each factor equal to zero to solve for
x
x
x
.
x
+
11
=
0
x + 11 = 0
x
+
11
=
0
or
x
−
11
=
0
x - 11 = 0
x
−
11
=
0
Solve for x:
Solve each equation for x.
\newline
x
=
−
11
x = -11
x
=
−
11
or
x
=
11
x = 11
x
=
11
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q
(
x
)
=
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6
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(
x
)
=
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6
−
9
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\newline
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)
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)
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\newline
(
x
+
7
)
(
x
+
4
)
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x
+
7
)
(
x
+
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)
\newline
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\newline
x
=
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