2 years ago

PLEASE HELP!! It’s due today and i don’t know how to do it.

Mathematics

1 answer:

lara [203]2 years ago

7 0

Answer:

Step-by-step explanation:

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If a+b=2 find the value of a3+b3+6ab

mars1129 [50]

Answer:

Step-by-step explanation:

Factor the sum of cubes

a³ + b³ = (a+b)(a² - ab +b²)

= 2a² - 2ab + 2b²

a³ + b³ + 6ab = 2a² + 4ab + 2b²

= 2(a² + 2ab +b²)

= 2(a+b)²

= 8

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3 years ago

Please help, I don’t really understand how to do this at all.

Alisiya [41]

Answer:

i don't know exactly.

Step-by-step explanation:

but the might be an angle tool online.

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2 years ago

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If the square of a positive integer is added to 2 times the integer, the result is 195 . Find the integer

user100 [1]

A^2+2a=195
Quadratic Formula,
a=13,-15

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3 years ago

How can the indicated logarithm be found? Without a calculator❓

e-lub [12.9K]

I guess you're supposed to write the expression on the right in terms of $A,B,C$ .

18. Notice that $729=9^3$ , so

$\log_8729=\log_89^3=3\log_89=3B$

20. Notice that $\dfrac{14}3=\dfrac{42}9=\dfrac{6\times7}9$ , so

$\log_8\dfrac{14}3=\log_8\dfrac{6\times7}9=\log_86+\log_87-\log_89=A+C-B$

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3 years ago

Kelly drank of the water in her bottle. She drank 3 cups of water. How many total

Harlamova29_29 [7]

3 i think , sorry if u get wrong

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3 years ago