tìm x biết \(x\in N\) a) \(3^{3\left(x-2\right)}=\left(3^{117}\times3^{115}\right)\div3^{100}\) ...
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tìm x biết \(x\in N\) a) \(3^{3\left(x-2\right)}=\left(3^{117}\times3^{115}\right)\div3^{100}\) b)\(32\times15\div2=\left(x+70\right)\times14-40\)
