Ask question

Ask question

All categories

2 years ago

12

Type the correct answer in each box. Consider the sum of cubes identity: a3 + b3 = (a + b)(a2 − ab + b2). For the polynomial 8x3

+ 27, a = and b = .

1 answer:

zhuklara [117]2 years ago

4 0

Answer:

a = 2x, b = 3.

Step-by-step explanation:

8x^3+27 = (2x)^3 + 3^3

a = 2x and b = 3.

We can cube root 8x^3 getting 2x and cube root 27 getting 3.

You might be interested in

if you know that 3+sqrt 11 is a root of a polynomial function, then the name given to 3 -sqrt 11, another root of that same func

lozanna [386]

Answer: Radical conjugate.

Step-by-step explanation:

By definition $a+\sqrt{b}$ and $a-\sqrt{b}$ are called "Conjugate radicals".

Therefore, by this definition, you can know the following:

1) $a+\sqrt{b}$ is the conjugate of $a-\sqrt{b}$

2) $a-\sqrt{b}$ is the conjugate of $a+\sqrt{b}$ .

Then, since you know that $3+\sqrt{11}$ is a root of a polynomial function, therefore you can conclude that the name given to the other root $3-\sqrt{11}$ of the same function is the following:

"Radical conjugate".

6 0

2 years ago

Which expression is equal to 48 + 72?

natita [175]

24(2+3)= 48 + 72 = 120

Hence, A is the answer

8 0

2 years ago

Read 2 more answers

In a trivia contest, players form teams and work together to earn as many points as possible for their team. Each team can have

N76 [4]

Answer:

There were 2 expressions I thought of it could be 10 x 5 or 10 + 10 + 10 + 10 + 10. I honestly hope this is the right answer because i'm only in 6th grade but hopefully it's correct.

Step-by-step explanation:

4 0

2 years ago

Please help! Giving points!

Bess [88]

Answer:

Bee

Step-by-step explanation:

Ya like jazz?

8 0

2 years ago

Tell whether (5, 2) is a solution of x - y < 0.

meriva

Your points: (5,2)

Your inequality: x - y < 0

Plug 5 in for x and y in for 2

5 - 2 < 0.

Simplify the left side

3 < 0.

3 is not less than 0

(5,2) is not a solution of x - y < 0

5 0

2 years ago