Question

5^3x * (5^3)^7=5^2x+3

Answer 1

Answer:

Step-by-step explanation:

Given that,

5^3x * (5^3)^7 = 5^2x+3

⇒ 5^3x * 5^21 = 5^2x +3 (∵( a ^m)^n = a ^mn )

⇒ 5^3x +21 = 5^2x +3 (∵Bases are equal then powers should be add )

⇒3x + 21 = 2x + 3 (∵Bases are equal then powers should be equal)

⇒ 3x - 2x = 3 - 21

⇒ x = - 18 is the answer.