3 years ago

PLZZ HELP ASAP!!!!!!!!!!!

Mathematics

2 answers:

deff fn [24]3 years ago

8 0

Answer:

x=-2 or x= -8.

Step-by-step explanation:

We have the equation

$x^2+10x+16=0$

To factor the polynomial we search two numbers that multiplied are 16 and added are 10. In this case, 8 and 2:

(x+2)(x+8)=0.

As we have a product equal to 0, one of the factors needs to be 0. Then,

x+2 = 0 or x+8 = 0

x = -2 or x = -8.

SIZIF [17.4K]3 years ago

3 0

-2, -8 give me 5 stars and thanks me

You might be interested in

x^2=6x+1 rewrite the equation by completing the square your equation should look like (x+a)^2=b or (x-c)^2=d

ryzh [129]

Answer:

(x - 3)² = 10

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Algebra I

Completing the Square

Step-by-step explanation:

Step 1: Define

x² = 6x + 1

Step 2: Rewrite

Subtract 6x on both sides: x² - 6x = 1
Complete the Square: x² - 6x + 9 = 1 + 9
Factor: (x - 3)² = 10

8 0

2 years ago

You are making sets of pens and pencils to sell. You want each set to contain the same combination of pens and pencils. You have

PolarNik [594]

7 pens and 20 pencils because 28 divided by 4 = 7 and 80 divided by 4 = 20

3 0

3 years ago

Read 2 more answers

Help me pls? thank you

Katyanochek1 [597]

i think its c (a picture of a city )

7 0

2 years ago

Read 2 more answers

Plz help me with these 2 problems I really need it and I need to know how you to the answer so I can show my work

ELEN [110]

Answer:

13.) 0.19625 15.) 37.68

Step-by-step explanation:

Formula for area of a circle: A=πr²

13.) 3.14 x .25² = 0.19625

Formula for circumference for a circle: C=πD or C=2πr

15.) (6 x 2) x 3.14 = 37.68

Hope this helped : )

7 0

2 years ago

Solve the system of linear equations by substitution. Check your solution.

bearhunter [10]

1. X+2=3x-4
6=2x
x= 3

2. y= 8-x
8-x = 3x+4
4= 4x
X= 1

3. -2x +3(2x+7)=9
-2x + 6x + 21 = 9
4x = -12
x= -3

8 0

2 years ago