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rah45
12.10.2020 •
Mathematics
PLZ HELP!!
Which of the following expressions is equal to x2 +25?
A. (X +51)
B. (x +10)(X -151)
C. (X-502
O D. (X - 5)(x+5))
Solved
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Ответ:
The answer is D. Hope this helps :)
Step-by-step explanation:
1. (x-5i)(x+5i)
2. x^2+(-5)^2
3. X^2+25
Ответ:
The answer is
x = 2- 43 - 4x = 3(1 - 9x)
Expand the terms
That's
- 43 - 4x = 3 - 27x
Group like terms
Send the constants to the right side of the equation and those with variables to the left side
That's
- 4x + 27x = 43 + 3
Simplify
23x = 46
Divide both sides by 23
We have the final answer as
x = 2Hope this helps you