8x^3-27=0 how do I solve this
94.2 cm
188.4 cm
376.8 cm
1. 2x^2+3x-5=x^2+4x-5
2. 16x^2+5=4
3. X^2+45=20-10x
WILL MARK BRAINLIEST!!
Answer:
Step-by-step explanation:
Factoring is aided by having the equations in standard form. The first step in each case is to put the equations in that form. The zero product property tells you that a product is zero when a factor is zero. The solutions are the values of x that make the factors zero.
1. x^2 -x = 0
x(x -1) = 0 . . . . . x = 0 or 1
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2. 16x^2 +1 = 0
This is the "difference of squares" ...
(4x)^2 - (i)^2 = 0
(4x -i)(4x +i) = 0 . . . . . x = -i/4 or i/4 (zeros are complex)
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3. x^2 +10x +25 = 0
(x +5)(x +5) = 0 . . . . . x = -5 with multiplicity 2
Answer: a survey
Step-by-step explanation:
we have
The options of the question are
A. X:-3 to x:-2
B.x:-2 to x:-1
C. X:1 to x:2
D. X:2 to x:3
Using a graph tool
see the attached figure
The graph is increasing in the interval (-0.15,2) and the interval (3.4, ∞)
The graph is decreasing in the interval (-∞, -0.15) and the interval (2,3.4)
therefore
the interval (1,2) is included in the interval (-0.15,2)
the answer is the option
C. X:1 to x:2
Answer:
Value of x is increasing between and
Step-by-step explanation:
Given : Function
To find : For which values of x the graph is increasing.
Solution :
We have plot the graph of the given function
The graph is attached below.
We see that the value of x is increasing from the interval
A- to
B- to
Which means x value is increasing between
and