heathhm60541
12.02.2021 •
Mathematics
The roots of a quadratic equations are 2 and 4. Which one of the following quadratic equations has these roots?
Solved
Show answers
More tips
- S Style and Beauty How to Choose the Right Fur Coat and Avoid Regrets?...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
Answers on questions: Mathematics
- M Mathematics What is $7.40 for 5 pounds...
- M Mathematics -10, -5,0, 5, 10 Find next term...
- M Mathematics Which of the ways of getting information listed below is an unblased sampling method...
- M Mathematics What is the simplified expression for –3cd – d(2c – 4) – 4d? a: –5cd b: cd – 8d c: 5cd – 8d d: –5cd – 8d...
- M Mathematics State whether each product will result in a perfect-square trinomial. 1. (x + 5) (x + 5) 2. (x + 2) (x- 2) 3. (5x-6) (5x-6)...
- M Mathematics I need to know how to do these...
Ответ:
It must be a perfect square. You can try factoring each equation to see if you have a perfect square, or you can evaluate the discriminant of each one. If the discriminant is zero, there is one real root to the equation. Try this approach.
f(x) = ax2 + bx + c
D = b2 - 4ac
If D = 0, then there is exactly one root, and it is real.
Ответ:
WHAT
Step-by-step explanation: