Replace
f
(
x
)
f
(
x
)
with
y
y
.
y
=
2
x
3
−
4
x
2
−
22
x
+
44
y
=
2
x
3
-
4
x
2
-
22
x
+
44
To find the roots of the equation, replace
y
y
with
0
0
and solve.
0
=
2
x
3
−
4
x
2
−
22
x
+
44
0
=
2
x
3
-
4
x
2
-
22
x
+
44
Rewrite the equation as
2
x
3
−
4
x
2
−
22
x
+
44
=
0
2
x
3
-
4
x
2
-
22
x
+
44
=
0
.
2
x
3
−
4
x
2
−
22
x
+
44
=
0
2
x
3
-
4
x
2
-
22
x
+
44
=
0
Factor the left side of the equation.
Tap for more steps...
2
(
x
−
2
)
(
x
2
−
11
)
=
0
2
(
x
-
2
)
(
x
2
-
11
)
=
0
Divide both sides of the equation by
2
2
. Dividing
0
0
by any non-zero number is
0
0
.
(
x
−
2
)
(
x
2
−
11
)
=
0
(
x
-
2
)
(
x
2
-
11
)
=
0
Set
x
−
2
x
-
2
equal to
0
0
and solve for
x
x
.
Tap for more steps...
x
=
2
x
=
2
Set
x
2
−
11
x
2
-
11
equal to
0
0
and solve for
x
x
.
Tap for more steps...
x
=
√
11
,
−
√
11
x
=
11
,
-
11
The solution is the result of
x
−
2
=
0
x
-
2
=
0
and
x
2
−
11
=
0
x
2
-
11
=
0
.
x
=
2
,
√
11
,
−
√
11
All you need to do is distribute the subtraction sign to all of the numbers in the polynomial being subtracted. Ex: (6x^4+8x^3-3)-(2x^2-9x+9) you distribute the subtraction sign in the (2x^2-9x+9) and get -2x^2+9x-9. Next, all you have to do is combine like terms. 6x^4+8x^3-3-2x^2+9x-9 Turns into 6x^4+8x^3-2x^2+9x-12
Answer:
1st box - 8
2nd box - square root 7 (subtract whole numbers only)
3rd box - 1/2 (there is an imaginary 1, so divide and leave the sqrt alone)
4th box - 20 (multiply the square roots then get 25 then sqare root it to get 5 then multiply by 5)
Step-by-step explanation:
Answer:
x=-400
x=-95
Step-by-step explanation:
They are negative because a negative times a negative is a positive.
