Some later schools question and answer asked over students to assert what they believe is the most important thing for a student to do in order to accomplished success. From the numerous responses, the one which that stood out was practice. Persons who are generally successful do not become successful by being born. They work hard and perseverance their lives to succeeding. This is how you can achieve your goals. following some question and answer examples that you could certainly use to elevate your knowledge and gain insight that will assist you to maintain your school studies.

## Question:

Solve (x + 3)2 + (x + 3) – 2 = 0. Let u = Rewrite the equation in terms of u. (u2 + 3) + u – 2 = 0 u2 + u – 2 = 0 (u2 + 9) + u – 2 = 0 u2 + u + 1 = 0 Factor the equation. What are the solutions of the original equation?

## Answer:

**Answer:**

The solutions of the original equation are x=-5 and x=-2

**Step-by-step explanation:**

we have

Let

Rewrite the equation

Complete the square

rewrite as perfect squares

square root both sides

the solutions are

u=-2,u=1

**Alternative Method**

The formula to solve a quadratic equation of the form

is equal to

in this problem we have

so

substitute in the formula

**Find the solutions of the original equation**

For u=-2

—->

For u=1

—->

therefore

The solutions of the original equation are

x=-5 and x=-2

From the answer and question examples above, hopefully, they can potentially guide the student solve the question they had been looking for and take note of all the things stated in the answer above. Then could potentially carry out some sharing in a group discussion and also learning with the classmate regarding the topic, so another student also will have some enlightenment and still keeps up the school learning.