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icang [17]
3 years ago
10

1) Q: A: Factor x2 + 8x + 16 A) (x + 4)2 B) (x - 4)2 C) (x + 8)(x + 2) D) (x + 2)(x - 8)

Mathematics
1 answer:
luda_lava [24]3 years ago
8 0

Answer:

(x+4)^2  Choice A

Step-by-step explanation:

x^2 + 8x + 16

what 2 numbers multiply together to give you 16 and add together to give you 8

1*16 = 16   1+16 = 17  no

2*8 = 16   2+8 = 10  no

4*4 = 16  4+4 = 8  yes


(x+4) (x+4)

(x+4)^2

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What is the sign of -4+-8?<br> Choose 1 answer:<br> Positive<br> Со<br> B<br> Negative<br> Zero
Elodia [21]

Answer:

Negative

Step-by-step explanation:

negative

-4

-8

+

---

-12

negative

6 0
3 years ago
Which equation shows a valid step in solving /2x-6+2x+6=0?
AfilCa [17]

An equation which shows a valid step that can be used to solve the given mathematical equation is (\sqrt[3]{2x - 6})^3 = (-\sqrt[3]{2x + 6})^3

<h3>What is an equation?</h3>

An equation simply refers to a mathematical expression that can be used to show the relationship existing between two (2) or more numerical quantities.

In this exercise, you're required to show a valid step which can be used to solve the given mathematical equation. Since both equations are having a cube root, the first step is to take the cube of both sides.

Take the cube of both sides, we have:

\sqrt[3]{2x - 6} + \sqrt[3]{2x + 6} = 0\\\\(\sqrt[3]{2x - 6})^3 + (\sqrt[3]{2x + 6})^3 = 0^3\\\\(\sqrt[3]{2x - 6})^3 = (-\sqrt[3]{2x + 6})^3

Read more on equations here: brainly.com/question/13170908

#SPJ1

5 0
2 years ago
I will mark you brainiest if you an answer this
irinina [24]

Answer:

the awnswer is a = 7 + c

Step-by-step explanation:

8 0
3 years ago
The product of a constant factor 15 and a 2-term factor x+4
dezoksy [38]
The product of 15 and x+4 is 15(x+4) = 15x+60. This is a linear binomial.

4x^3-2x-9-(2x^3) is a cubic trinomial. In your original question, I'm not sure what the 5x+3 means.
6 0
2 years ago
PLZ Help me
maxonik [38]

Answer:

$128.40

Step-by-step explanation:

Find the total cost of the pizza before tax.

15 × 8 = 120

Set up a proportion to find the tax.
7/100 = x/120

Cross multiply

840 = 100x

Divide both sides by 100

Tax = $8.40

$120 + $8.40 = $128.40


I hope this helped and please mark me as brainliest!

8 0
2 years ago
Read 2 more answers
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