My article will help you understand the principle of decomposition of a square equation with three unknown to members.
The main method of decomposition of a square equation with three unknown members
- Square equation with three unknowns refer to the equation of the type AX 2+ BX + s.
- To decompose the square equation with three unknown, the general denominator will be put up for brackets.
Example with decomposition
- We have a square three-half x 2+ 5x + 6. And we need to decompose it on multipliers, that is, get two brackets. So what will be in brackets?
- To do this, look at the coefficients. This square three decreases three coefficients: 1, 5 and 6. We are interested in the second and third coefficients.
- We need to find two such numbers that give 5 in the amount, that is, the second ratio, and the multiplication give 6. What are these numbers?
- Well, what numbers in principle give 6 when multiplying. These numbers include: 1) 6 and 1, 2) 2 and 3.
- The amount 6 and 1 gives in the end 7, which is not equal to 5, so this option is not suitable for us.
- But the amount 2 and 3 suits us, because in the end gives 5, that is, the result of the second coefficient. When multiplying 2 and 3, in the end, give the result of the third coefficient.
- As a result, our decomposition will look like (x + 2) (x + 3).
Now thanks to this article, you studied the rules for the decomposition of a square equation with three unknown members.