A student is solving the problem X to the power of 2+10x+ __=16+ __ my method of completing the square. What number should the s
tudent add to both sides?
A) 4
B)5
C) 25
D) 16
A) 4
B)5
C) 25
D) 16
1 answer:
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Answer:
Step-by-step explanation:
The quadratic formula is:
The discriminant of a quadratic is just the expression under the square root, or . This can tell us the number of solutions a quadratic has.
If the discriminant is:
- Positive = 2 real solutions
- Equal to Zero = 1 real double/repeated solution
- Negative = 0 real solutions, but 2 imaginary solutions
Our quadratic equation has a discriminant of 5, which is positive. Therefore, it has 2 real solutions.
Answer:
The expression that represent the distance between -14.6 and -5.2 is the value absolute of the subtraction of the two points.
Then the distance is
