Question

Find the value of x,if 5^x+5^x-1=750​

Answer 1

Answer:

x=4

Step-by-step explanation:

5ˣ + 5ˣ⁻¹ = 750​

5ˣ⁻¹( 5+1) =750

5ˣ⁻¹ = 750 /6=125

5ˣ⁻¹ =125

5ˣ⁻¹ =5³

Thus x--1=3

so x=4