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tresset_1 [31]
1 year ago
14

Multiply (3a³-6b³) (4a² + 5b²)

Mathematics
1 answer:
GREYUIT [131]1 year ago
3 0

Answer:

12a^5+15a^3b^2-24b^3a^2-30b^5

Step-by-step explanation:

(3a³-6b³) (4a² + 5b²) -> <u>Simplify</u> not Multiply

Expand (3a³-6b³) (4a² + 5b²) using the FOIL Method.

Apply the <u>distributive property</u>.

3a^3(4a^2+5b^2)-6b^3(4a^2+5b^2)

3a^3(4a^2)+3a^3(5b^2)-6b^3(4a^2+5b^2)

3a^3(4a^2)+3a^3(5b^2)-6b^3(4a^2)-6b^3(5b^2)

<h3><u /></h3>

<u>Simplify each term.</u>

Rewrite using the <u>commutative property of multiplication</u>.

3*4a^3a^2+3a^3(5b^2)-6b^3(4a^2)-6b^3(5b^2)

↓

12a^5+15a^3b^2-24b^3a^2-30b^5

<em />

<em>Equation Simplified.</em>

<em>---------------------------------------------------------------------------------------</em>

Hope this helped!

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a cell phone company is giving a 20℅ discount on all phone accessories which expression can used to find the sale price of an it
Sholpan [36]

Answer:

The expression that can be used is 0.80x

Step-by-step explanation:

Let

x ----> original price of an item

Remember that

100\%-20\%=80\%

That means---> the sale price is 80% of the original price

To find out the sale price, determine the 80% of the original price

80\%=80/100=0.80 ----> percentage in decimal form

Multiply the original price by the percentage in decimal form to obtain the sale price

so

0.80x

6 0
3 years ago
HALP MEEEEEEE!!!!!!!!!!!!!!!!!!!!!
Lesechka [4]

Answer: 4

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
X^2 -9X = 0. Factor and use the Zero property to solve
Veseljchak [2.6K]
The first step of factoring is to try to factor out a common factor.
The terms x^2 and -9x have the factor x in common.
Factor out x from both terms.

x^2 - 9x = 0

x(x - 9) = 0

Now you have a product of fully factored terms equaling zero, so you can apply the zero product property to solve.

x = 0   or   x - 9 = 0

x = 0   or   x = 9

Answer: x = 0 or x = 9
5 0
2 years ago
(NEED DONE QUICK) Two angles are supplementary. One of the angles measures 4(2x+9) and the other angle measures 2(4x-8) what is
Studentka2010 [4]

Answer:

x=10

Step-by-step explanation:

Supplementary angles are angles equal to 180°.

Therefore:

4(2x+9)+2(4x-8)=180

Now that we have our equation, let's distribute the 4 and the 2 into the parentheses they are next to:

8x+36+8x-16=180

Combine like terms:

16x+20=180

Subtract 20 from both sides of the equation:

16x=160

Divide by the coefficient of x, which is 16:

x=10

~

Check your work by substituting 10 into one of the equations above:

8(10)+36+8(10)-16=180

80+36+80-16=180

180=180

It's correct!

6 0
3 years ago
2-8x=10 looking for solution
leva [86]

Answer:

Step 1: Simplify both sides of the equation.

2−8x=10

2+−8x=10

−8x+2=10

Step 2: Subtract 2 from both sides.

−8x+2−2=10−2

−8x=8

Step 3: Divide both sides by -8.

−8x ÷ −8

=

8 ÷ −8

x=−1

Answer:

x=−1

☆ Hopefully this helps. :)

♤Mark me the brainliest :)

8 0
3 years ago
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