All categories

2 years ago

Evaluate the expression x^4+9x^2 when x=-3

Mathematics

2 answers:

aalyn [17]2 years ago

6 0

Answer:

162

Step-by-step explanation:

Step 1: Define

x⁴ + 9x²

x = -3

Step 2: Substitute and Evaluate

(-3)⁴ + 9(-3)²

81 + 9(9)

81 + 81

162

Yuliya22 [10]2 years ago

6 0

Answer:

162

Step-by-step explanation:

You might be interested in

Find the median of the following data 20,14,6,25,18,13,19,10,9,12

vivado [14]

Step-by-step explanation:

1. Arrange all the numbers in ascending order.

2. Since there are 10 numbers, there will be 2 numbers in the middle, add those two middle numbers and divide by 2.

3. The result is your answer.

5 0

2 years ago

Read 2 more answers

(-10) + 3 = 10 - 3 is true or false???

Goshia [24]

(-10) + 3 = -(10 - 3) = -7

10 - 3 = 7

-7 ≠ 7

FALSE

3 0

2 years ago

Please solve this for me

tatuchka [14]

Answer:

3-3x/8

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

There are nine water bottles in a fridge. Three full boxes are added. Two more boxes are added, both of which have one fewer bot

Degger [83]

The number of bottles in a full box is 12.

Explanation

Suppose, the number of bottles in a full box is $x$

So, the number of bottles in three full boxes $=3x$

Now, two more boxes are added, both of which have one fewer bottle than the other three. So, the number of bottles in these two boxes $= 2(x-1)$

As there were 9 bottles initially and now there are 67 bottles in the fridge, so the equation will be....

$9+3x+2(x-1)=67\\ \\ 9+3x+2x-2=67\\ \\ 5x+7=67\\ \\ 5x=67-7\\ \\ 5x=60\\ \\ x=\frac{60}{5}=12$

Thus, the number of bottles in a full box is 12.

7 0

3 years ago

What is 65 x 264 + 81 - 94

zmey [24]

Answer: 17,147

Step-by-step explanation:

7 0

2 years ago