Question

Radical equations help? URGENT
5. x^2/5 • x^2/9
6. 81^-3/4
7. (9+2√6)(6-√6)
8. i^12
9. √x-8 + 8 = x
10. 4x^5/6
11. 4√98
12. (7+i)-(6-2i)
13. A fraction has a denominator of 5 + 2i. What is multiplied with the fraction to rationalize the fraction?

Thank you so much

Answer 1

any idea?

Answer 2

@Loser66 huh? no i don't

Answer 3

do you know that \(\huge a^b * a^c = a^{b+c}\)?

Answer 4

i do now haha

Answer 5

so, just apply \(\huge x^{\frac{2}{5}}*x^{\frac{2}{9}}\)

Answer 6

\[x ^{4/13}?\]

Answer 7

2/5+2/9 is not 4/13. It's \(38/45\)

Answer 8

...how

Answer 9

make them have the same denominator by multiply first fraction by 9 and second one by 5 , then add them.