A quadratic is an expression of the form ax²+bx+c.
If the quadratic is in the perfect square form, it could be factored to look something like this:
(x+a)² or (x-a)²
Both of the above forms have one solution, that is "-a" and "a" respectively.
So if your quadratic equation is of the form:
(x±a)² = b, where b > 0
You can solve for "x" by taking the square root of both sides and getting 2 solutions -- ±a±√b.
And if your quadratic equation is of the form:
(x±a)² = b, where b < 0
Then when you try taking the square root of both sides, you will have to take the square root of a negative number, which means you will not get a real solution. Therefore, there will be zero solutions.
And finally if your quadratic equation is of the form:
(x±a)² = b, where b = 0
Then you will have one solution -- ±a.
Hope that helps!
Answer:
Step-by-step explanation:
Answer:
210
Step-by-step explanation:
Rewriting input as fractions if necessary:
4/7, 5/14, 4/15
For the denominators (7, 14, 15) the least common multiple (LCM) is 210.
LCM(7, 14, 15)
Therefore, the least common denominator (LCD) is 210.
Calculations to rewrite the original inputs as equivalent fractions with the LCD:
4/7 = 4/7 × 30/30 = 120/210
5/14 = 5/14 × 15/15 = 75/210
4/15 = 4/15 × 14/14 = 56/210
Answer:
79
Step-by-step explanation:
because i said so
18 straws because 72 divided by 4 is 18 that is an example of summary number modeling.
