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mezya [45]
2 years ago
8

Which expression is equivalent to 7a³ (8a² + a)²-4a³? Simplify.

Mathematics
1 answer:
valentina_108 [34]2 years ago
8 0

7a³ (8a² + a)²-4a³ \\  \\ 7 {a}^{3}(8 { {a}^{2} + a)(8 {a}^{2} + a )} - 4 {a}^{3}  \\  \\ 7 {a}^{3} ( {8a}^{2} (8 {a}^{2} + a ) + a(8 {a}^{2} + a ) - 4 {a}^{3}  \\  \\ 7 {a}^{3} (64 {a}^{4}  +  8{a}^{3}  + 8 {a}^{3}  +  {a}^{2} ) - 4 {a}^{3}  \\  \\ 7 {a}^{3}  (64 {a}^{4}  +  16 {a}^{3}  +  {a}^{2} ) - 4 {a}^{3}  \\  \\ 448 {a}^{7}  + 112 {a}^{6}  + 7 {a}^{5}  - 4 {a}^{3}  \\  \\  {a}^{3} (448 {a}^{4}  + 112 {a}^{3}  + 7 {a}^{2}  - 4).

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Answer: They are similar many ways.

Step-by-step explanation:

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7 0
4 years ago
Ms. B is making snickerdoodle cookies. Her recipe uses one and a half teaspoons of cinnamon to make two dozen cookies. If she ne
Korvikt [17]

Answer:

First we must learn to dissect a question.

<h3>Explanation:</h3>

Part 1

We can list our facts first:

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She needs 13 dozen cookies. So (13/2)x 1.5 teaspoons

6.5 \times 1.5 = 9.75 \: teaspoons

<h3>Part 2</h3>

She needs 9.75 teaspoons and 3 teaspoons make a tablespoon

So..

9.75 \div 3 = 3 r0.75= 3tbsp \: and \: 0.75tsp

7 0
2 years ago
If a translation of T-3,-8(x, y) is applied to square ABCD,<br> what is the y-coordinate of B?
borishaifa [10]
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4 0
3 years ago
What is the answer to this question I can’t work it out Ni=n02(yi-yo)/t2
mr_godi [17]

Changing the subject of an equation involves solving for another variable in the equation

The equation of t is t=\frac{\sqrt{y_i-y_o}}{N}

<h3>How to change the subject of the equation</h3>

The equation is given as:

N=\sqrt[2]{\frac{y_i-y_o}{t^2}}

Rewrite the equation as:

N=\sqrt{\frac{y_i-y_o}{t^2}}

Evaluate the square root of t^2

N=\frac{\sqrt{y_i-y_o}}{t}

Multiply both sides by t

Nt=\sqrt{y_i-y_o}

Make t the subject, in the above equation

t=\frac{\sqrt{y_i-y_o}}{N}

Hence, the equation of t is t=\frac{\sqrt{y_i-y_o}}{N}

Read more about subject of formula at:

brainly.com/question/657646

6 0
2 years ago
Which ratio is equivalent to 10:85
Nata [24]
<span>First, find what are the numbers that can be divided to 10 and 85. The numbers 10 and 85 can be divided by 5. 10 divided by 5 is equals to 2 and 85 divided by 5 is equals to 17. Ratio is just like a fraction, you need to reduce its terms if you need to. Let’s say 10:85 is a fraction and since it is obvious that it can be divided by 5, you just need to reduce its term. 10/85 can be reduced into 2/17 which is just the same with ratios 10:85 is equals to 2:17.<span>
</span></span>
5 0
4 years ago
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