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Zanzabum
3 years ago
14

Identify the factor terms by grouping: 4x^3 + 2x^2 – 18x – 9

Mathematics
2 answers:
Rainbow [258]3 years ago
8 0

Answer:

C) 2x^2(2x + 1) - 9(2x + 1)

Step-by-step explanation:

hram777 [196]3 years ago
5 0
Group terms that have factorable coefficients (like 2&4 and then 9&18)

(4x³ + 2x²) + (-18x - 9)

factor out the like terms
2x²(2x + 1) - 9(2x +1)

parenthesis are the same so you can factor further.. {Like 2x+3x = (2+3)x}

(2x² - 9)(2x+1)

Factored too far they only want Answer C. is the correct one for grouping
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.Find the vertex, zero(s), and y-intercept of the graph of y = x2 + 4x – 5.
scZoUnD [109]

Answer:

Vertex (-2,-9)

zeros: x=1, x=-5

y-intercept: -5

Step-by-step explanation:

When you graph the quadratic equation you obtain the parabola shown in the figure attached.

Find the vertex of the parabola observing the graph, you can that the minimum point of the parabola is at (-2,-9) this is the vertex.

The zeros are the x-intercepts:

x=1; x=-5

And the y-intecept is when x=0 and the parabola cut the y-axis. This is: -5.

8 0
3 years ago
Read 2 more answers
Find the pattern and identify the next 3 terms in the sequence<br>5, -10, 20...​
Marta_Voda [28]

Answer:

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Step-by-step explanation:

5(-2)^n-1

where n is the position

6 0
3 years ago
(-11/21)+9/21 Pls help
Ilya [14]
<h2>Answer: good question  Step-by-step explanation:Interesting  Would you like to become my friend Answer is -2/21  </h2>
4 0
3 years ago
Read 2 more answers
Please help!! (Number 73)
Rasek [7]
So hmm notice the picture below

one is 7x5x1.75 the volume of a rectangular prism is V = length * width * height

so 7*5*1.75 gives us 61.25 ft³

the second one, is larger by some width and length we dunno, but we know that it required that 61.25 plus an extra 17.5 to fill it up, so its volume is 61.25 + 17.5 or 78.75

the height is the same... so \bf V=l\cdot w\cdot h\qquad &#10;\begin{cases}&#10;l=length\\&#10;w=width\\&#10;h=height\\ --------\\&#10;h=1.75\\&#10;V=78.75&#10;\end{cases}\implies 78.75=lw\cdot 1.75&#10;\\\\\\&#10;\cfrac{78.75}{1.75}=lw\implies 45=lw

so.. if you factor 45, to two factors, one will be the length, the other the width

3 0
3 years ago
Write 26% as a decimal.
earnstyle [38]
Move the decimal point 2 to the left

Answer is .26
6 0
3 years ago
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