1. Simpify 5√d^15 = d^3
2. Simplify ^3√x^6 = x^2
3. Simplify 6√16x+5√16x = 44x
4. Simplify x+2√x-8√x-9 = x-6√x-9
5. Simplify x+9√x+4√x-9 = x+5√x-9
6. Simplify sprt(5x^4y^4) times sqrt(6x^2y) = 30x^6y^5
7. Simplify (9√x+6)^2 = 81x+54√x+36
Got no examples in the textbook to proof that.
2007-11-23 05:18:13 · 2 answers · asked by Vinko B 1 in Science & Mathematics ➔ Mathematics
U did great
The prob 5 ; should it be 13 sqrtx????
problem 6 ; is it sqrt[30x^6y^5]=x^3y^2sqrt(30y) ???
prob 7 should it be: 81x + 108sqrtx +36 ???
2007-11-23 05:38:25 · answer #1 · answered by tinhnghichtlmt 3 · 0⤊ 0⤋
1,2 and 3 look ok. The rest don't. For example, in #7, this simplifies to 81x+486 (I assume x+6 is under the radical.) In #6, you can multiply terms, but the square root goes along for the ride. So you would have x^3y^2sqrt(30y) as an answer,
2007-11-23 05:39:49 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋