(x + 10)² - 1
= (x² + 20x + 100) - 1
= x² + 20x + 99
None of the choices you provided are correct. Did you type in the question wrong?
Answer:
Step-by-step explanation:
The given expression is
To solve this expression, we first need to solver the power of the binomial with the following formula
Where and , so
So, we need to find which option is equal to the expression we found.
However, neither of the choices are equivalent to the expression we found.
Therefore, the answer is none of the above.
The original angle is 150 degrees.
X || Z.
C.
BD = DC because angles ADC and ADB are right angles.
Thus,
Add 5 to both sides:
Subtract 2x from both sides:
Divide both sides by 2:
DC