f. √0,000121
= √121 x 10⁻⁶ = √121 x √10⁻⁶ = 11 x 10⁻³
g. √0,00000324
= √324 x 10⁻⁸ = √324 x √10⁻⁸ = 18 x 10⁻⁴
h. 9√2 + √72 - √578
= 9√2 + √(36 x 2) - (√289 x 2)
= 9√2 + √36 x √2 - √289 x √2
= 9√2 + 6√2 - 17√2
= 15√2 - 17√2 = -2√2
f. √0,000121
= √121 x 10⁻⁶ = √121 x √10⁻⁶ = 11 x 10⁻³
g. √0,00000324
= √324 x 10⁻⁸ = √324 x √10⁻⁸ = 18 x 10⁻⁴
h. 9√2 + √72 - √578
= 9√2 + √(36 x 2) - (√289 x 2)
= 9√2 + √36 x √2 - √289 x √2
= 9√2 + 6√2 - 17√2
= 15√2 - 17√2 = -2√2
Editor: Sani Charonni