Question

bentuk rasional dari 6/✓7+2



tolong kk/abng besok dikumpulkan​

Answer 1

Merasionalkan Akar

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[tex] \frac{6}{ \sqrt{7} + 2} = \frac{6}{ \sqrt{7} + 2 } \times \frac{ \sqrt{7} - 2}{ \sqrt{7} - 2 } [/tex]

[tex]~~~~~~~~~~= \frac{6( \sqrt{7} - 2) }{7 - 4} [/tex]

[tex]~~~~~~~~~~= \frac{6 \sqrt{7} - 12 }{3} [/tex]

[tex]~~~~~~~~~~=2 \sqrt{7} - 4[/tex]

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[tex]\begin{array}{lr}\texttt{Selamat Menunaikan Ibadah Puasa}\end{array}[/tex]

[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at | 28 - 03 - 2023}}[/tex]

Answer 2

6/√7 + 2

= 6/√7 + 2 × √7 - 2/√7 - 2

= 6(√7 - 2)/(√7 + 2(√7 - 2)

= 6(√7 - 2)/(√7(√7)(-2(2)

= 6(√7 - 2)/7 - 4

= 6(√7 - 2)/3

= (6/3)(√7 - 2)

= 2(√7 - 2)

= (2(√7) - (2(2)

= 2√7 - 4