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3 years ago

(X-2)(x^2+2x+4) what is the answer to this equation?

2 answers:

8 0

First we expand by distributing sum groups
X(x^2 + 2x + 4 ) - 2 (x^2 + 2x + 4)
Then you expand by distributing terms
X^3 + 2 x^2 + 4x - 2 ( x^2 + 2x + 4)
Collect like terms
X^3 + (2x^2 - 2x^2) + (4x - 4x) - 8
Simplify
X^3 - 8

Delvig [45]3 years ago

7 0

Answer:

x^3 - 8

Step-by-step explanation:

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Four students spent $9.40 on school lunch.at this rate,predict the amount 10 students would spend on the same school lunch

Tom [10]

You will need to know how much each lunch cost
so
9.40 <span>÷ 4 = 2.35
so each lunch cost 2.35 dollars

now we need to find out how much it will cost for 10 lunches

10 x 2.35 = 23.5

so for 10 lunches it will cost 23.5</span>

8 0

3 years ago

Read 2 more answers

pen costs twice as much as a pencil. The total cost of 1 1 pen and 1 1 pencil is $2.10 $ 2 . 10 . If p represents the cost of 1

dybincka [34]

Answer : The equation could you use to find p is, $2p+p=2.10$

Step-by-step explanation :

Let the cost of 1 pen be, 'x'

and the cost of 1 pencil is, 'p'

As we are given that total cost of 1 pen and 1 pencil is $2.10. The equation will be:

$x+p=2.10$ ............(1)

And we have also given that the pen costs twice as much as a pencil. The equation will be:

$x=2p$ ............(2)

Now put the equation 2 in equation 1, we get:

$x+p=2.10$

$2p+p=2.10$

Thus, the equation could you use to find p is, $2p+p=2.10$

3 0

3 years ago

Read 2 more answers

Ben bowled 121 and 184 in his first two games. What must he bowl in his third game to have an average of at least 170?

vagabundo [1.1K]

Answer:

205

Step-by-step explanation:

Were gonna start by writing an equation (121+184+x)/3=170 because were adding a 3rd value to the average and x is going to be our value that were looking for. If you solve that, you get 205. Hope this helps.

6 0

3 years ago

A bag contains three red marbles, two green ones, one lavender one, two yellows, and two orange marbles. HINT [See Example 7.] H

lapo4ka [179]

Answer: 8

Step-by-step explanation:

Given: A bag contains three red marbles, two green ones, one lavender one, two yellows, and two orange marbles.

Total marbles other than green = 8

Total marbles other than green and yellow = 6

Then the number of sets of seven marbles include at least one yellow one but no green ones:-

$^{2}C_1\times^{6}C_6+ ^2C_2\times^6C_5\\\\= 2\times 1+1\times6\\\\=2+6=8$

Number of sets of seven marbles include at least one yellow one but no green ones = 8

3 0

4 years ago

4. What is the value of b in the triangle shown below? (1 point)

koban [17]

C no solution none could be multiplied to be 24 in

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3 years ago