Question

√72 + 2√8 - 7√2

√147 - √48 + √27

Answer 1

Akar 72 + 2 akar 8 - 7 akar 2
= akar ( 36 x2) + 2 akar(4 x 2) - 7 akar 2
= 6 akar 2 + 4 akar 3 - 7 akar 2
= 3 akar 2

akar 147 - akar 48 + akar 27
= akar ( 49 x3) - akar( 16 x 3) + akar ( 9x3)
= 7 akar 3 - 4 akar 3 + 3 akar 3
= 6 akar 3

Answer 2

» √72 + 2√8 - 7√2 = √2.6.6 + 2√2.2.2 - 7√2 = 6√2 + 2.2√2 - 7√2 = 6√2 + 4√2 - 7√2 = 3√2 » √147 - √48 + √27 = √3.7.7 - √3.4.4 + √3.3.3. = 7√3 - 4√3 + 3√3 = 6√3