if you have 2 radical equations, 28 rad.5 +2 rad.5, can you add and make 30 rad.5? help plz!
2006-10-05 18:48:08 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
If you can't remember some math rules put them into your calculator and check.
2006-10-05 18:53:37 · answer #1 · answered by Bandit 3 · 0⤊ 1⤋
YES. This is simply an application of the distributive law: ac+bc=(a+b)c. In this case, a=28, b=2, c=√5. Thus, 28√5 + 2√5 =30√5.
2006-10-05 18:58:14 · answer #2 · answered by Pascal 7 · 0⤊ 0⤋
rad 5 is the square root of 5 or 2.236 so
28 x (rad 5) 2.236 = 62.609
2 x (rad 5) 2.236 = 4.4721
30 rad 5 = 67.082 = 62.809 + 4.471 **check!
2006-10-05 18:53:53 · answer #3 · answered by goodcharacter 3 · 0⤊ 1⤋
Yes. Think of the radical part like a variable. If you have28x + 2x you'll get 30x.
2006-10-05 19:16:53 · answer #4 · answered by PatsyBee 4 · 0⤊ 0⤋
No cheating. Do it yourself. I'm sure your text book has the answer.
2006-10-05 18:59:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋