if (5^2x+2)-625=4.5^2x+1 Find value of x Pls tell fast
Answers
Answered by
0
Answer:
25^x-1 = 5^(2x-1) - 100
⇒ 5^2x-2 = 5^(2x-1) - 100
⇒ 5^2x-2 - 5^2x-1 = -100
⇒ 5^2x [ 5^-2 - 5^-1] = - 100
⇒ 5^2x [ 1 - 1 ] = - 100
25 5
⇒ 5^2x [ 1 - 5] = - 100
25
⇒ 5^2x [ -4 ] = - 100
25
⇒ 5^2x [-4] = -100 * 25
⇒ 5^2x = 100 * 25 [ - * - = +]
4
⇒ 5^2x = 625
⇒ 5^2x = 5^4
so, ⇒ 2x = 4
⇒ x = 2
Answered by
0
Answer:
I'm not sure, please check.
Step-by-step explanation:
(5^2x+2)-(4.5^2x+1)=625
(5^2x)*(5^2)-(4)*(5^2x)*(5)=625
5^2x[5^2-4*5]=625
(5^2x)*5=625
5^2x=625/5
5^2x=125
5^2x=5^3
Since bases are same,
2x=3
x=3/2
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