Решите уравнения корень 4x + 1 = 4 и корень 4х ² + 5х-2=2

[latex] \sqrt{4x+1} =4 [/latex] 4x+1=16 4x=15 x=3.75 ......................... [latex] \sqrt{4x^2+5x-2} =2[/latex] [latex] 4x^2+5x-2 =4[/latex] [latex]4x^2+5x-6=0[/latex] [latex]D=5^2-4*4*(-6)=25+96=212[/latex] [latex]x_{1} = \frac{-5+11}{8}= \frac{3}{4} =0,75[/latex] [latex]x_{2} = \frac{-5-11}{8}=-2[/latex]