Q. 3 F5.0( 3 Votes )

Solve the following equations for x:


Answer :

Given:-


Take



We know that, Formula



Thus,






40 – 8x2 = 158x


8x2 + 158x – 40 = 0


4x2 + 79x – 20 = 0


4x2 + 80x – x – 20 = 0


4x(x + 20) – 1(x + 20) = 0


(4x – 1)(x + 20) = 0


4x – 1 = 0 or x + 20 = 0



Since,


x > 0


So,


is the root of the given equation


Therefore,



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Inverse Trigonometric Functions - 01Inverse Trigonometric Functions - 01Inverse Trigonometric Functions - 0161 mins
Inverse Trigonometric Functions - 02Inverse Trigonometric Functions - 02Inverse Trigonometric Functions - 0242 mins
Inverse Trigonometric Functions - 03Inverse Trigonometric Functions - 03Inverse Trigonometric Functions - 0339 mins
Inverse Trigonometric Functions - 04Inverse Trigonometric Functions - 04Inverse Trigonometric Functions - 0438 mins
Questions Practice of Inverse trigonometric FunctionsQuestions Practice of Inverse trigonometric FunctionsQuestions Practice of Inverse trigonometric Functions30 mins
Interactive Quiz | Graphs of inverse trigo functionsInteractive Quiz | Graphs of inverse trigo functionsInteractive Quiz | Graphs of inverse trigo functions39 mins
Graphs of inverse trigo functionsGraphs of inverse trigo functionsGraphs of inverse trigo functions48 mins
Functions - 01Functions - 01Functions - 0152 mins
Functions - 10Functions - 10Functions - 1047 mins
Functions - 05Functions - 05Functions - 0558 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Solve the following equation for x :

Mathematics - Board Papers