1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kumpel [21]
3 years ago
6

Factor completely x2 + 8x - 20

Mathematics
2 answers:
Oliga [24]3 years ago
8 0
Answer=(x-2) (x+10)

For this it helps if you do a factoring table but since I will not for the sake of not having an image to show you, I will try and explain my answer.

The expression is: 

x²+8x-20

In this case, since the x² doesn't have a number before it, we know that the beginning x's are solo, so we have...


(x+?)(x+?)

Now to solve the rest of the expression, we need to find two numbers that when multiplied equal -20 and when added equal 8.

a*b=-20
a+b=8

Lets look at the factor pairs of -20

(-1,20) or (1,-20) or (-2,10) or (2,-10) or (-4,5) or (4,-5)

Of all of these, only one pair have a sum of 8

So we can solve the expression

x²+8x-20=(x-2)(x+10)

kvv77 [185]3 years ago
3 0
X-2
Hope this helps!
Vote me brainliest!
You might be interested in
A bottle of soft drink is two thirds full. Jack drinks one quarter of the remaining soft drink. How full is the bottle now
marusya05 [52]

We know that the bottle of soft drink has a remaining volume which is 2 / 3 of the original.

Since Jack drank 1 / 4 of the remaining volume, hence only 3 / 4 now finally remains, the total is:

 

(2 / 3) * (3 / 4) = 6 / 12 = 1 / 2

 

<span>Hence the bottle is now one half full</span>

8 0
3 years ago
Read 2 more answers
Write the equation g(x) of the transformation of the parent graph f(x) = |x| translated right 5 units.
Archy [21]

Answer:

g(x) = |x-5|

Step-by-step explanation:

f(x) = |x|

y = f(x + C)  C < 0 moves it right

g(x) = |x-5| moves it to the right 5 units

7 0
3 years ago
Read 2 more answers
A die is rolled. Find the probability of getting a 2. (answer in fraction form)
Alisiya [41]
If a die is rolled , the probability of getting a 2 is 1/6.
6 0
3 years ago
Read 2 more answers
The Boden family is taking a road trip across the US. After initially driving for awhile, the Bodens decide to make a plan to dr
kipiarov [429]

Answer:

202

Step-by-step explanation:

973-771=202

5 0
3 years ago
Read 2 more answers
Can some one help with 18 and 19
bulgar [2K]
<span>By by pythagorean theorem
12 (squared) + r (</span>squared) = (8+r) squared<span>
so 144 + r ( </span>squared) = 64 + r (squared)<span> +16r
so solving for r:
144 -64 = r </span>squared –r squared<span> + 16r
80 = 16r
so r = 80/16= 5

the second is the same
21 </span>squared + r squared = (9 + r ) squared<span>
441 + r </span>squared = 81 + r squared<span> + 18r
441 – 81 = r </span>squared – r <span>squared</span><span> + 18r
r = 360/18 = 20</span>
5 0
3 years ago
Other questions:
  • If f(x) = 2x -1 and g(x) = x^2 what is the value of f(g(-3))? PLZ HELP WILL MARK BRAINLIEST
    9·1 answer
  • Sydney read
    6·2 answers
  • the pie store is having a 20% off sale on all of its pies. if the pie you want regularly costs $18, how much would you save with
    15·1 answer
  • Gino bought 1/2 lb of​ candy, 3/4 lb of​ nuts, and 7/8 lb of granola to make a trail mix. How many pounds of trail mix did Gino​
    7·1 answer
  • Your bill at pizza hut is $30. You leave a 20% tip. What is the amount of tip
    10·2 answers
  • Brandy plays a hockey video game. She earns 2 stars for every goal she scores
    15·2 answers
  • Find the circumference of the circle. Round your answer to the nearest hundredth. Use 3.14 or 227 for π.
    11·1 answer
  • 5.<br> {wawawawawawawawawawawa}
    10·1 answer
  • Please check these please
    15·2 answers
  • Riley set up a snack table for her dog's birthday party. She invited all the neighborhood dogs
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!