Question

Cm resolve ??? Preciso urgente

Answer 1

$log_{_{2x}}(6x^2-13x+15)=2\\\\(6x^2-13x+15)=(2x)^2\\\\6x^2-13x+15=4x^2\\\\2x^2-13x+15=0\\\\Bhakara:\\\Delta=(-13)^2-4.2.15\\\Delta= 169-120\\\Delta=49\\\\x'=\frac{13+\sqrt{49}}{2.2}=\frac{13+7}{4}=5\\\\x''=\frac{13-\sqrt{49}}{2.2}=\frac{13-7}{4}=\frac{3}{2}$

S = {5 , 3/2}