if (3/8)^-5×(16/21)^-5=(2/7)^x find the x^3
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Answered by
11
8/3^5 x 21/16^5=2/7^x
powers are same,we can write as follows
(8/3 x 21/16)^5 = 2/7^x
7/2^5 = 2/7^x
2/7^-5 = 2/7^x
bases are same,we equate powers...
so,x=-5
hope this will help u...
Answered by
1
Answer:
x=-5
Step-by-step explanation:
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