Answer:
−3x3−16x2−14x+8
Step-by-step explanation:
first times the first x in parentheses by everything in the second
(x)(-3x^2) and (x)(-4x) and (x)(2)
-3x^3-4x^2+2x
Then times the 4 by the other variables in the parentheses
(4)(-3x^2) and (4)(-4x) and (4)(2)
-12x^2-16x+8
now the whole equation:
-3x^3-4x^2+2x -12x^2-16x+8
now you must simplify or add like terms
-3x^3-16x^2-14x+8 is your answer, which is the first one.
Answer:
I believe this is what you're looking for
Step-by-step explanation:
Answer:
Hi there!
Your answer is:
-26/5 , -5.17 , √33 , 37/6
Step-by-step explanation:
-26/5 = -5.2
-5.17 = -5.17
✓33= 5.7
37/6 = 6.16
Answer:
Explanation:
A quadratic function is a kind of function with highest degree 2 . Standard form of the quadratic equation : tex]ax^2+bx+c=0[/tex]
Further explanation:
Consider the given quadratic equation :
First we divide both sides by 3 , we get
--------(1)
Compare this equation to , we have
[divide both sides by 2]
Now using the completing the squares method , Add and subtract to the left side in (1), we get
It can be written as
Use identity , we have
Subtract from both the sides , we get
Therefore, the value of
Learn more :
Keywords :
Quadratic equation, standard form, completing squares method, Polynomial identities.
For this case we have the following polynomial:
To solve the problem, we must complete squares.
The first step is to divide the entire expression by 3.
We have then:
The second step is to place the constant term on the right side of the equation:
The third step is to complete the square:
Rewriting we have:
Answer:
By completing squares we have:
Bob gives 3/4 of the beads to his friend
2/3 of the beads bob now had are red
Work out how many green beads bob now has
Now from 120 beads, Bob has 10 green beads.
Ratio basically compares quantities, that means it show value of one quantity with respect to other quantity.
If a and b are two values, their ratio will be a:b,
Given that,
Total number of beads = 120,
Since, Bob gives 3/4 of the beads, So the remaining beads,
= 120×1/4
=30
Now from these 30 beads, 2/3 beads are red,
So red beads are = 30×2/3 = 20
Therefore, green beads are = 30-20= 10
Bob has 10 green beads.
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