CBSE Class 9 Answered
If , then find the value of x.
A) 4
B) 1
C) 2
D)3
Asked by adalroshan2464 | 14 Nov, 2018, 06:16: PM
Expert Answer
Given equation can be written as,
By cross multiplication, we write,
Raising both sides to the power of 16 on both side, we get,
eqn.(3) can be solved only if all the terms are expressed as powers of 3.
Hence ( 2x - 1 ) = 3 or x =2 . Also ( 5 + 2x ) = 9
hence LHS of eqn.(13) 9×314 = 316 = RHS of eqn.(13)
Hence the answer is x = 2
Answered by Thiyagarajan K | 17 Nov, 2018, 04:00: AM
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