3 years ago

X 2 + 13x + 40 = 0 solving quadratic

Mathematics

2 answers:

Gnesinka [82]3 years ago

8 0

Answer: x=-5 or x=-8

Step-by-step explanation:

x^2+13x+40=0

x^2 + 8x + 5x +40=0

x(x+8)+5(x+8)=0

(x+5)(x+8)=0

x+5=0 or x+8=0

x=-5 or x=-8

Arte-miy333 [17]3 years ago

3 0

Answer x=-5 or x=-8

You might be interested in

15 POINT 1 QUESTION<br> ITS ALL UP TO YOU!!!!

Anni [7]

First, we can simplify the left side. (6+8x)/2 is equal to 3 + 4x. We can put the equation together at this point.

3 + 4x = 5x

we can subtract 4x from both sides to get our final answer,

3 = x, or x = 3. :)

8 0

2 years ago

Write the ratio as a fraction in simplest form<br> 30 to 18

Westkost [7]

30/18 = 10/6 = 5/3 hope this helps!

6 0

2 years ago

Read 2 more answers

What's the answers to Part A and Part B?

Westkost [7]

Answer:

there's nothing there

Step-by-step explanation:

4 0

2 years ago

There are 211 basketball fans who plan to go to a game. How many buses will be needed, given that each bus can hold 48 fans?

Nata [24]

4 buses you just divide 211 by 48

4 0

2 years ago

Please help for 10 points and 5 stars with 1 thanks! :]

Rudiy27

probability = favourable outcomes/total outcomes

you need 1 banana, out of 4 and there are total of 6 items so probability will be 4/6

when you take out 1 banana, there are 3 banana left and total of 5 items

so probability of this action will be 3/5

now, next action is taking out another banana.

this is NOT an independent event.

so by we will multiply the probabilities of these events according to rule of products.

so the answer is $\frac{4\cdot3}{6\cdot5}=\frac25$

or 2×100/5=40%

7 0

2 years ago