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solve-x-2-4x-4-x-2-5x-6-2-x-2-5x-6-x-2-4x-4-




Question Number 172030 by Mikenice last updated on 23/Jun/22
solve:  (√(((x^2 +4x+4)/(x^2 +5x+6)) ))  +  2 (√((x^2 +5x+6)/(x^2 +4x+4))) =?
$${solve}: \\ $$$$\sqrt{\frac{{x}^{\mathrm{2}} +\mathrm{4}{x}+\mathrm{4}}{{x}^{\mathrm{2}} +\mathrm{5}{x}+\mathrm{6}}\:}\:\:+\:\:\mathrm{2}\:\sqrt{\frac{{x}^{\mathrm{2}} +\mathrm{5}{x}+\mathrm{6}}{{x}^{\mathrm{2}} +\mathrm{4}{x}+\mathrm{4}}}\:=? \\ $$
Answered by Rasheed.Sindhi last updated on 23/Jun/22
Simplifying (Not solving):  ((√(x^2 +4x+4))/( (√(x^2 +5x+6))))+((2(√(x^2 +5x+6)))/( (√(x^2 +4x+4))))  =((x^2 +4x+4+2(x^2 +5x+6))/( (√(x^2 +5x+6)) (√(x^2 +4x+4))))  =((3x^2 +14x+16)/( (x+2)(√((x+2)(x+3))) ))  =(((x+2)(3x+8))/( (x+2)(√((x+2)(x+3))) ))  =(((3x+8)(√((x+2)(x+3))) )/( (x+2)(x+3) ))
$${Simplifying}\:\left(\mathcal{N}{ot}\:{solving}\right): \\ $$$$\frac{\sqrt{{x}^{\mathrm{2}} +\mathrm{4}{x}+\mathrm{4}}}{\:\sqrt{{x}^{\mathrm{2}} +\mathrm{5}{x}+\mathrm{6}}}+\frac{\mathrm{2}\sqrt{{x}^{\mathrm{2}} +\mathrm{5}{x}+\mathrm{6}}}{\:\sqrt{{x}^{\mathrm{2}} +\mathrm{4}{x}+\mathrm{4}}} \\ $$$$=\frac{{x}^{\mathrm{2}} +\mathrm{4}{x}+\mathrm{4}+\mathrm{2}\left({x}^{\mathrm{2}} +\mathrm{5}{x}+\mathrm{6}\right)}{\:\sqrt{{x}^{\mathrm{2}} +\mathrm{5}{x}+\mathrm{6}}\:\sqrt{{x}^{\mathrm{2}} +\mathrm{4}{x}+\mathrm{4}}} \\ $$$$=\frac{\mathrm{3}{x}^{\mathrm{2}} +\mathrm{14}{x}+\mathrm{16}}{\:\left({x}+\mathrm{2}\right)\sqrt{\left({x}+\mathrm{2}\right)\left({x}+\mathrm{3}\right)}\:} \\ $$$$=\frac{\cancel{\left({x}+\mathrm{2}\right)}\left(\mathrm{3}{x}+\mathrm{8}\right)}{\:\cancel{\left({x}+\mathrm{2}\right)}\sqrt{\left({x}+\mathrm{2}\right)\left({x}+\mathrm{3}\right)}\:} \\ $$$$=\frac{\left(\mathrm{3}{x}+\mathrm{8}\right)\sqrt{\left({x}+\mathrm{2}\right)\left({x}+\mathrm{3}\right)}\:}{\:\left({x}+\mathrm{2}\right)\left({x}+\mathrm{3}\right)\:} \\ $$
Commented by Mikenice last updated on 23/Jun/22
thanks sir
$${thanks}\:{sir} \\ $$

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