Simplify 6z^-7 (2) x² (4) ^4x^-4
2 answers:
Step-by-step explanation:
First, subtract
7
from each side of the equation to put the equation in standard form:
x
2
+
4
x
+
4
−
7
=
7
−
7
x
2
+
4
x
−
3
=
0
We can now use the quadratic formula to find the solutions for
x
. The quadratic formula states:
For
a
x
2
+
b
x
+
c
=
0
, the values of
x
which are the solutions to the equation are given by:
x
=
−
b
±
√
b
2
−
(
4
a
c
)
2
⋅
a
Substituting:
1
for
a
4
for
b
−
3
for
c
gives:
x
=
−
4
±
√
4
2
−
(
4
⋅
1
⋅
−
3
)
2
⋅
1
x
=
−
4
±
√
16
−
(
−
12
)
2
x
=
−
4
±
√
16
+
12
2
x
=
−
4
±
√
28
2
x
=
−
4
±
√
4
⋅
7
2
x
=
−
4
±
√
4
√
7
2
x
=
−
4
±
2
√
7
2
x
=
−
4
2
±
2
√
7
2
x
=
−
2
±
√
7
Or
x
=
−
2
+
√
7
and
x
=
−
2
−
√
7
Answer:
3
Step-by-step explanation:
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Answer:
7 and 8
Step-by-step explanation:
(x+3)(x+4)
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Answer:
Step-by-step explanation:
So, she has a box of treats that weighs 9.0 pounds.
She's using those treats to make smaller bags, each having 0.6 pounds of treats.
How many smaller bags can she make?
Answer: A fraction is in lowest terms when the numerator and denominator have no common factor other than 1.
Step-by-step explanation: The factors of 2 are 1 and 2. The factors of 4 are 1, 2, and 4. 2 and 4 share a common factor: 2.
Answer:
$13.61
Step-by-step explanation:
$18 * 70% = $12.60
$12.60 * 1.08 = $13.61
