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Makovka662 [10]

3 years ago

8

Simplify the expression(-n³+8)+(-n³+5)

2 answers:

Novosadov [1.4K]3 years ago

8 0

When simplified the answer is -2n^3+13

andrew-mc [135]3 years ago

6 0

Answer: -2n^3+13

Step-by-step explanation:

Use PEMDAS

P- ()

E _^

M *

D /

A +

S -

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There are 5 members of a Math Club. In how many ways can the positions of a secretary, a presidents and treasurer be chosen?

Shkiper50 [21]

Answer:

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3 0

3 years ago

Subtract and simplify. Show work please!

ra1l [238]

1) Final expression: $+7y^2-6y-17$

2) Final expression: $21x^3-46x^2+59x-30$

Step-by-step explanation:

1)

The first expression is

$(-2y^2-11y-7)-(-9y^2-5y+10)$

First, we remove the 2nd bracket by changing the sign of all the terms inside:

$-2y^2-11y-7-+9y^2+5y-10$

Now we group the terms with same degree together:

$(-2y^2+9y^2)+(-11y+5y)+(-7-10)$

Now we solve the expression in each brackets:

$(-2y^2+9y^2)+(-11y+5y)+(-7-10)=\\+7y^2-6y-17$

So, this is the final expression.

2)

The second expression is

$(7x-6)(3x^2-4x+5)$

We apply the distributive property, so we rewrite the expression as follows:

$(7x-6)(3x^2-4x+5)=7x(3x^2-4x+5)-6(3x^2-4x+5)$

Solving both brackets,

$7x(3x^2-4x+5)-6(3x^2-4x+5)=\\21x^3-28x^2+35x-18x^2+24x-30$

Now we group terms of same degree together:

$21x^3-28x^2+35x-18x^2+24x-30=\\21x^3+(-28x^2-18x^2)+(35x+24x)-30$

And solving each bracket,

$21x^3+(-28x^2-18x^2)+(35x+24x)-30=\\21x^3-46x^2+59x-30$

So, this is the final expression.

Learn how to simplify expressions:

brainly.com/question/7014769

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#LearnwithBrainly

3 0

3 years ago

What is the square root of Pi

Sauron [17]

The square root of Pi is approximately 1.77245.

8 0

2 years ago

Read 2 more answers

Movie theater makes 40% on every ticket they sell. If the theater made $24,850 in ticket sales last month, what was the total mo

shtirl [24]

If you were supposed to find 40% of $24,850 then the answer would be $9940.

4 0

3 years ago

Which expression is equivalent to 6t⁻⁷x 3 t⁵

aleksandrvk [35]

6t^-7 * 3t^5 = 1/6t^7 * 3t^5

6 0

2 years ago