Tolong jawabannya dan caranya dong
Matematika
Lilia73
Pertanyaan
Tolong jawabannya dan caranya dong
1 Jawaban
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1. Jawaban hendrisyafa
1) [tex]L= \sqrt{ x^{2} +2x}} - \sqrt{x^{2} +x}. \frac{ \sqrt{ x^{2} +2x}+ \sqrt{ x^{2} +x} }{ \sqrt{ x^{2} +2x}+ \sqrt{ x^{2} +x} } [/tex]
[tex]L= \frac{ x^{2} +2x-( x^{2} +x) }{ \sqrt{ x^{2} +2x}+ \sqrt{ x^{2} +x} } [/tex]
[tex]L= \frac{ x }{ \sqrt{ x^{2} +2x}+ \sqrt{ x^{2} +x} } [/tex]
[tex]L= \frac{ \frac{x}{x} }{ \sqrt{ \frac{x^{2}}{x^{2}} + \frac{2x}{x^{2}} }+ \sqrt{ \frac{x^{2}}{x^{2}} + \frac{x}{x^{2}} } } [/tex]
[tex]L= \frac{ 1}{ \sqrt{1+ 0 }+ \sqrt{ 1+0} } }[/tex]
[tex]L= \frac{ 1}{ 1+1} }[/tex]
[tex]L= \frac{1}{2} [/tex]
7) [tex]L= \frac{(x-3)(x+3)}{x+3} =x-3[/tex]
[tex]L=-3-3[/tex]
[tex]L=-6[/tex]