0

Guest

Courses New

If 5 to the power x - 1 + 5 to the power x + 5 to the power x + 1 is equal to 775, find the value of x where X is a positive integer options are first option one second option 3 third option to fourth and last option 4 please answer this question

If 5 to the power x - 1 + 5 to the power x + 5 to the power x + 1 is equal to 775, find the value of x where X is a positive integer options are first option one second option 3 third option to fourth and last option 4 please answer this question

Question Image
Grade:7

2 Answers

suraj kumar
12 Points
6 years ago
5^x-1 + 5^x + 5^x+1=7755^x(5^-1 + 1 +5^1)=7755^x(31/5)=7755^x=775*5/315^x=5^3 //both sides of 5 will cancel outx=3
suraj kumar
12 Points
6 years ago
5^x-1 + 5^x + 5^x+1=775......5^x(5^-1 + 1 +5^1)=775.......5^x(31/5)=775.......5^x=775*5/31.......5^x=5^3 //both sides of 5 will cancel outx=3

Think You Can Provide A Better Answer ?

Other Related Questions on Discuss with Askiitians Tutors

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More