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vazorg [7]
2 years ago
15

How can I factorise expressions

Mathematics
1 answer:
expeople1 [14]2 years ago
7 0

Answer:

The first step of factorising an expression is to 'take out' any common factors which the terms have. So if you were asked to factorise x² + x, since x goes into both terms, you would write x(x + 1) . This video shows you how to solve a quadratic equation by factoring.

Step-by-step explanation:

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Please I really need help! I will mark you as brainliest!
iogann1982 [59]

Answer:

-10  /  -5  /  -1  /  0  /  1  /  5  /  10

Step-by-step explanation:

I hope this helps!

5 0
3 years ago
Which of the following values is a solution of |2-x| less than 4
morpeh [17]

The correct answer is -1.

In order to solve this, we need to split into the positive and negative version of the answers. Let's start with the positive version.

2 - x < 4

-x < 2

x > -2 ----> NOTE: When we divide by -1, we have to change the direction of the sign.

Now we'll do the negative version.

2 - x > -4

-x > -6

x < 6

So we know the number must be greater than -2, but less than 6. The only number on this list that fits that is -1.

4 0
3 years ago
a store is having a sale on chocolate chips and walnuts. for 3 pounds of chocolate chips and 5 pounds of walnuts the total cost
Delvig [45]
If you set you the equations such as 3c+5w=23 and 6c+2w=20 and then solve the first equation for c, you get c= (23-5w)/3 Taking that equation and substituting it for 'c' in the second equation (so the second equation becomes: 6((23-5w)/3)+2w=20  ) you get w=3.25 If you plug that back into your first equation (so it now becomes: 3c+5(3.25)=23 ) you get c=2.25 So the answer would be walnuts cost $3.25 per lb and choc. chips cost $2.25 per lb. 
6 0
3 years ago
Four friends go to the movies and pay $11 per ticket. They also each buy a snack
Setler79 [48]

Answer:

Each snack combo costed $8

Step-by-step explanation:

4 friends* 11 per ticket = $44 for four tickets

76 - 44 = $32 spent on all the snack combos

$32 ÷ 4 friends = $8 spent on each snack combo

So, each snack combo costed $8

Hope this helps!

6 0
2 years ago
Read 2 more answers
Help me please with this math question asap
steposvetlana [31]

Answer:

5

Step-by-step explanation:

A function

a \times  {b}^{x}

where a is the initial value and b is the multiplicative rate of change.

In the function,

f(x) = 2 \times  {5}^{x}

5 is the value of b so

5 is the multipicative rate of change

8 0
3 years ago
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