B. Sederhanakanlah bentuk akar berikut 1. √8+ √72-√50 =(√x) + (√x) - (√√ ×..) =(√x √√) + (√√√) - (√√) = 2√ +6√√-5√ (...+...-...)√2 = -√2 2. 5V2 x V18 =5xV2x. = 5xV...
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NOMOR 1.
[tex]\sqrt{8} + \sqrt{72} - \sqrt{50} [/tex]
[tex]= \sqrt{4 \times 2} + \sqrt{36 \times 2} - \sqrt{25 \times 2} [/tex]
[tex]= 2 \sqrt{2} + 6 \sqrt{2} - 5 \sqrt{2} [/tex]
[tex]= (2 + 6 - 5) \sqrt{2} = 3 \sqrt{2} [/tex]
NOMOR 2.
[tex]5 \sqrt{2} \times \sqrt{18} = 5 \sqrt{2 \times 18} = 5 \sqrt{36} = 5 \times 6 = 30[/tex]
[answer.2.content]
