radical equations?

0 ⤊

find each product (in simplified form)
1.
[√(0.08) + √(0.0032)] √(2)

2.
3√(2) [3√(8) - 4√(2)]

2007-07-16 14:21:08 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

[√(0.08) + √(0.0032)] √(2)
= [√(2)* √(0.04 + √(2* √(0.0016)]√(2
= 2[0.2 + 0.04]
= 2*0.24
= 0.48

3√(2) [3√(8) - 4√(2)]
= 3√(2) [3*2√(2) - 4√(2)]
= 3*2 [6 - 4]
= 6 * 2
= 12

2007-07-16 14:26:51 · answer #1 · answered by gudspeling 7 · 0⤊ 1⤋

Answer 1:
[â(0.08) + â(0.0032)] â2

= (â2 * â0.08) + (â2 * â0.0032)
= â0.16 + â0.0064
= 0.4 + 0.08
= 0.48

Answer 2:
3â(2) [3â(8) - 4â(2)]

= (3â2 * 3â8) - (4â2 * 3â2)
= (3 * 3 * â2 * â8) - (4 * 3 * â2 * â2)
= (9 * 4) - (12 * 2)
= 36 - 24
= 12

2007-07-16 21:27:44 · answer #2 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋