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Anton [14]
2 years ago
15

Solve the equation by factorisation method. ​

Mathematics
2 answers:
tia_tia [17]2 years ago
8 0
3(x+1) + 4(x) = 2x(x+1)
3x + 3 + 4x = 2x^2 + 2x
2x^2 - 5x - 3 = 0
if we factorise the quadratic equation
(2x + 1)(x - 3)=0
2x + 1 = 0 or x - 3 = 0
so x = -1/2 or x = 3
mash [69]2 years ago
6 0

Answer:

x = 3 or x = -1/2

Step-by-step explanation:

hope this helps you!

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PLEASE HELP!!!<br> A)<br> B)<br> C)<br> D)
Vlad1618 [11]

Answer:

b i think

Step-by-step explanation:

4 0
2 years ago
What is the factored form of the quadratic expression x^2+36
e-lub [12.9K]

Answer:

(x − 6i) (x + 6i)

Step-by-step explanation:

Using real numbers, x² + 36 is already simplified.

Using imaginary numbers:

x² + 36

x² − 36i²

(x − 6i) (x + 6i)

6 0
3 years ago
I'm a little confused, it's about Combining like terms but I did don't understand​
ella [17]
2(-n-3)-7(5+2n)

First, you need to distribute the numbers in front of the parentheses to those in the parentheses. This means you multiply.

2 times -n= -2n

2 times -3= -6

-7 times 5= -35

-7 times 2n= -14n

This leaves you with

-2n -6 -35 -14n

Next, combine like terms.

(-2n) + (-14n)= -16n
(-35) + (-6)= -41

This gives you

-16n-41, which is B in your answer choices.

Hope this makes sense!! :)
6 0
2 years ago
Read 2 more answers
Need help with math please
Tamiku [17]
The answer is c
(0,8) is the y intercept so the +.. is +8
then pug in 4 to x and find which one equal 0
3 0
3 years ago
Monica bowled three games. Her scores were 175, 142, and 133. What was her mean, or average, score
forsale [732]

Answer:

Her average score is 150

Step-by-step explanation:

You add 175+142+133 and divide it by 3

To find mean or average you add up all the numbers and divide by how many numbers there are

3 0
3 years ago
Read 2 more answers
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