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sukhopar [10]
3 years ago
13

Simplify and find value. a 3x^3−x^3+5x^3−9x^3 if x=−1

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
7 0

Answer:

the answer is 2

Step-by-step explanation:

so when you simplify this problem you have to put (-1) in parentheses and then you multiply each number by itself and if it's an addition you add it.

balandron [24]3 years ago
4 0

Answer:

I think it is 2

Sorry if I got it wrong

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2 years ago
Read 2 more answers
Simplify x^2-9x-22/x-11
OleMash [197]

Answer:

x^2-11/-8x

Step-by-step explanation:

We can solve this equation easily by using PEMDAS, or order of operations.

<u>Parenthesis</u>

<u>Exponents</u>

<u>Multiplication>Division (Depends on which comes first left to right)</u>

<u>Addition>Subtraction (See multiplication>division)</u>

Now that we know the order of the operations, we can solve.

First, we cant solve for x^2 because we dont know the value of x, so well leave that alone. Same with 22/x. All we can do is use the commutative property.

So our equation is now x^2-11/-8x

Hope this helps!

6 0
3 years ago
What is the equation of the line that passes through the point (−1,−3) and has a slope of 3?
Tanya [424]

Answer:

y= 3x

Step-by-step explanation:

The slope is just read. It is 3. It is the value of m in the general equation.

y = mx + b

y = 3x + b

To find b, use (-1,-3)

x = -1

y = -3                  Substitute into the general equation

-3 = 3(-1) + b       Simplify the right side

-3 = -3 + b          Subtract -3 from both sides

b = 0

Answer: y = 3x

7 0
2 years ago
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