Which of the following value of 'X' satisfies the equation $$81^{4x+4}=243^{2x+8}$$ ?
Expression : $$81^{4x+4}=243^{2x+8}$$
=>Â $$(3^4)^{4x+4}=(3^5)^{2x+8}$$
=> $$(3)^{16x+16}=(3)^{10x+40}$$
=> $$16x+16=10x+40$$
=> $$16x-10x=40-16$$
=> $$6x=24$$
=> $$x=\frac{24}{6}=4$$
=> Ans - (B)
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