Respuesta :
Answer:
last choice
Step-by-step explanation:
x² + 10x + 24 = 0
For the middle term coefficient of 10, we need (10/2)² = 5² = 25.
x² + 10x + 25 - 1 = 0
x² + 10x + 25 = 1
(x + 5)² = 1
Answer: last choice
Answer:
Table four.
Step-by-step explanation:
You can rule out the first two options right away. On the LHS you have a positive number, or at best zero. On the RHS you have a negative number. Neither can happen with real numbers.
Table three doesn't work either. In order to write the LHS as a square you need to have the sum of two squares, plus twice their product. 26 is obviously not a square, so no good.
Finally, the fourth one is correct. 25 is 5 squared, and 10x is 2 times 5 times x.