Meritnation.com Go to Call Me

Have a query? Let us call you for FREE

X

+91

E.g : 9884012345, 01123456789

Office hours: 9:00 am to 9:00 pm IST (7 days a week)

Log In Create Account

OOPS! We could not find any topic named

Select a subject to see full topic list

Meritnation Junior

GK Olympiad Hindi Math Science Social Science English

SUBJECT

TEXTBOOK SOLUTIONS ASK & ANSWER My Q & A

HOMEWORK HELP

POTU just finished solving your NCERT Textbook Questions. Check them out here

Home

If x² + 2 = 2x, then find the value of x⁴ - x³ + x² + 2. Also show the method please.

$x^{4} - x^{3} + x^{2} + 2 = {(x^{2})}^{2} - x (x^{2}) + x^{2} + 2 = {(2 x - 2)}^{2} - x (2 x - 2) + (2 x - 2) + 2 (g i v e n, x^{2} + 2 = 2 x \Rightarrow x^{2} = 2 x - 2) = 4 x^{2} + 4 - 8 x - 2 x^{2} + 2 x + 2 x - 2 + 2 = 2 x^{2} - 4 x + 4 = 2 (x^{2} - 2 x + 2) = 2 \times 0 = 0 (g i v e n, x^{2} + 2 = 2 x \Rightarrow x^{2} + 2 - 2 x = 0) H e n c e, x^{4} - x^{3} + x^{2} + 2 = 0$

53

View Full Answer

Popular questions from

Show More Questions

Math Tables by Meritnation Download iPhone App

Copyright © 2024 Aakash EduTech Pvt. Ltd. All rights reserved.