Question

how do you solve a radical expression?

Answer 1

so like for example ?

Answer 2

um 54sqrt(2a^16) + 24sqrt(2a^16)

Answer 3

can you rewriting this using just exponent

sqrt(a^3) = ?

Answer 4

uh, what?

Answer 5

will be a on exponent ?

Answer 6

yeah, a is an exponent

Answer 7

use wolframalpha.com

Answer 8

ok, whats that?

Answer 9

oh, nevermind. thanks

Answer 10

so you have got is right ?

Answer 11

HAH YEAH, THANKS

Answer 12

54sqrt(2a^16) + 24sqrt(2a^16)

so if you know that sqrta = a^1/2

can using this in case of your exercise too

sqrt(2a^16) = (2a^16)^1/2 but you know that (xy)^a =x^a *y^a

and you know sure again that (x^a)^b = x^(a*b)

so this mean that in case of your exercise will be

sqrt(2a^16) =(2a^16)^1/2 = 2^1/2 * (a^16)^1/2 = 2^1/2 *a^(16 *(1/2) =
= 2^1/2 *a^(16/2) = 2^1/2 * a^8 = a^8 *sqrt2

hope you will can using this in case of second term too

so but because there are inside radical the same terms so than what you will can going easy

so for example 2sqrt3 + 5sqrt3 = ?

Answer 13

so do you understand it my work ?

than for your understanding

2sqrt3 +5sqrt3 = 7sqrt3

and this can you us it in case of your exercise too

than what will get there ?

Answer 14

um, haha yeah i got it.. thanks

Answer 15

than for your exercise will be

54sqrt(2a^16) + 24sqrt(2a^16) = (54+24)sqrt(2a^16)

Answer 16

so ok

good luck

bye

Answer 17

ha bye