Tolong dong kak/bang, soalnya mau dikumpulin besok ​

Jawaban: sederhanakan soal-soal akar ini satu per satu: @Ara14121. √18 + √50 - √72 - √18 = √(9 * 2) = 3√2- √50 = √(25 * 2) = 5√2- √72 = √(36 * 2) = 6√2 Jadi, 3√2 + 5√2 - 6√2 = (3 + 5 - 6)√2 = 2√2 2. 2√8 + √18 + √32 + √200 - 2√8 = 2√(4 * 2) = 2 * 2√2 = 4√2- √18 = √(9 * 2) = 3√2- √32 = √(16 * 2) = 4√2- √200 = √(100 * 2) = 10√2 Jadi, 4√2 + 3√2 + 4√2 + 10√2 = (4 + 3 + 4 + 10)√2 = 21√2 3. 3√28 - √7 + √18 - 2√63 - 3√28 = 3√(4 * 7) = 3 * 2√7 = 6√7- √18 = √(9 * 2) = 3√2- 2√63 = 2√(9 * 7) = 2 * 3√7 = 6√7 Jadi, 6√7 - √7 + 3√2 - 6√7 = (6 - 1 - 6)√7 + 3√2 = -√7 + 3√2 = 3√2 - √7 4. 4√45 + 3√75 - 2√20 - 4√45 = 4√(9 * 5) = 4 * 3√5 = 12√5- 3√75 = 3√(25 * 3) = 3 * 5√3 = 15√3- 2√20 = 2√(4 * 5) = 2 * 2√5 = 4√5 Jadi, 12√5 + 15√3 - 4√5 = (12 - 4)√5 + 15√3 = 8√5 + 15√3

Answered by ara1412 | 2025-08-09