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3 years ago

Find the product and simplify your answer. -n(-2n4+9n-5)

Mathematics

1 answer:

Harman [31]3 years ago

8 0

Answer:

$+2n^5 - 9n^2 + 5n$

Step-by-step explanation:

To solve the expression

$-n(-2n^4+9n-5)$

first we will multiply -n with each term and then find their products.

When doing multiplication the powers will be added and co-efficient will be multiplied.

$-n(-2n^4+9n-5)\\-n(-2n^4) -n(+9n) -n(-5)\\+2n^5 - 9n^2 + 5n$

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Subtract. (6-v-25) - (7+-4)

dmitriy555 [2]

Answer:

$\left(6-v-25\right)-\left(7+\left(-4\right)\right)=-v-22$

Step-by-step explanation:

Considering the expression

$\left(6-v-25\right)\:-\:\left(7+-4\right)$

$\left(6-v-25\right)-\left(7+\left(-4\right)\right)$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$6-v-25-\left(7-4\right)$

$\mathrm{Subtract\:the\:numbers:}\:7-4=3$

$6-v-25-3$

$\mathrm{Group\:like\:terms}$

$-v+6-25-3$

$\mathrm{Add/Subtract\:the\:numbers:}\:6-25-3=-22$

$-v-22$

Therefore,

$\left(6-v-25\right)-\left(7+\left(-4\right)\right)=-v-22$

7 0

3 years ago

3(r-1) -2(r+3) =0 anybody know the answer to that ?

agasfer [191]

Answer:

r = 9

Step-by-step explanation:

3(r - 1) - 2(r + 3) = 0

First, use the distributive property.

3r - 3 -2r - 6 = 0

Now, isolate the variable "r" to one side by adding the opposite of the whole numbers to each side so it cancels it out on the left ide and adds it to the right.

3r - 3 -2r - 6 = 0

+3 +6 +3 +6

3r - 2r = 9

Subtract the r's.

r = 9

Now that we know r = 9, we can plug in 9 into the original (but distributed) expression for every time it uses the variable "r" to check our work.

3r - 3 -2r - 6 = 0

3(9) - 3 - 2(9) - 6 = 0

27 - 3 - 18 - 6 = 0

24 - 24 = 0

0 = 0

So, r = 9 is true.

Hope this helps! If you have any additional questions, please don't hesitate to ask me or your teacher to be sure you master the subject. Stay safe, and please mark brainliest!

6 0

2 years ago

Plis only answer correctly

gregori [183]

Answer:

Step-by-step explanation:

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8 0

3 years ago

Read 2 more answers

What is 6 x 10(2) aka 6 x 10 to the second power

Crank