Question

Tìm x , biết

(x+15)^5 = 15^10

Answer 1

\(\left(x+15\right)^5=15^{10}\)

=> \(\left(x+15\right)^5=\left(15^2\right)^5\)

=> \(\left(x+15\right)^5=225^5\)

=> \(x+15=225\)

=> \(x=225-15=210\)

Vậy \(x=210\)

Answer 2

\(\left(x+15\right)^5=15^{10}\)

\(\Rightarrow\left(x+15\right)^5=\left(15^2\right)^5\)

\(\Rightarrow x+15=225\)

\(\Rightarrow x=210\)

Answer 3

(x + 15)⁵ =15¹⁰

=> (x + 15)⁵ =15^2.5

=> (x + 15)⁵ = (15²)⁵

=> (x + 15)⁵ = 225⁵

=> x + 15 = 225

=> x = 225 -15

=> x = 210

Answer 4

x+15 =225

x= 210