vi

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Phổ biến Word Problems >

If a number is added to twice its square, the result is 6

Lời Giải

I f a n u mb er i s a dd e d t o tw i ce i t s s q u a re, t h e res u lt i s 6

Lời Giải

The number : 1 \frac{1}{2} or - 2

Các bước giải pháp

Represent the number with

x

A.T.Q.:

2 x^{2} + x = 6

Giải

x, 2 x^{2} + x = 6 : x = \frac{3}{2}, x = - 2

Chuyển phân số không thực sự thành hỗn số:

\frac{3}{2} = 1 \frac{1}{2}

The number : 1 \frac{1}{2} or - 2

Ví dụ phổ biến

Perry has 6,552 in an account. The interest rate is 14.3% compounded annually.To the nearest cent, how much interest will he earn in 4 years?The chu vi of a circle is 17pi m. What is the area, in square meter Express your answer in terms of pipi The chu vi of a circle is 14pi cm. What is the area, in square centimeters? Express your answer in terms of pipi.25% of what number is 160 4400 dollars is placed in an account with an annual interest rate of 8.25%. How much will be in the account after 29 years?