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Lemur [1.5K]
2 years ago
8

Write an equivalent expression to -3(6x^2-10x+9)+8x^2(3x+4)

Mathematics
2 answers:
algol [13]2 years ago
7 0
Answer: 24x^3 + 14x^2 + 30x - 27

-3(6x^2-10x+9)+8x^2(3x+4)

Distribute the -3.

-18x^2+30x-27+8x^2(3x+4)

Distribute the 8x^2.

-18x^2+30x-27+24x^3+32x^2

Combine Like Terms and Rearrange.

24x^3 + 14x^2 + 30x - 27





pychu [463]2 years ago
4 0

Answer:

Step-by-step explanation: hope this help :)

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What is a possible value for the missing term of the geometric sequence 35,_,875,...
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Determine the nth term for each of the following sequences:16,15,14,13,12,..
Vladimir79 [104]
F(n) = 1st term - common difference (n - 1)

The operation is subtraction because the sequence is decreasing.

n = number of the term you are looking for
1st term = 1st number in the sequence, in this case, 16
common difference = difference between one number to the next

f(n) = 16 - 1(n-1)

Assuming we are looking for the 5th term.
f(5) = 16 - 1(5-1)
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If you are looking for the equivalent of the nth term, simply substitute n by the number you are looking for and solve the equation.
7 0
3 years ago
A school bus has 25 seats, with 5 rows of 5 seats. 15 students from the first grade and 5 students from the second grade travel
kow [346]

Answer:

5P5×20P15

Step-by-step explanation:

A school bus has 25 seats, with 5 rows of 5 seats.

15 students from the first grade and 5 students from the second grade travel in the bus.

second-grade students occupy the first row.

The 5 students of second grade are to be seated in 5 seats,this can be done in:

5P5 ways where P is the permutation

Now 15 students from first grade are to be arranged in remaining 20 seats

This can be done in:

20P15 ways

Hence, total ways student can be seated is:

5P5×20P15

6 0
3 years ago
The difference of twice a number and five is three. Find the number.
ss7ja [257]

let x = a number

difference means that its subtraction

twice a number is 2x

so the equation should be

2x-5=3

add 5 to both sides

2x=8

divide both sides by 2

x=4

5 0
2 years ago
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