English, asked by anuragarya39, 11 months ago

lf x= 9-4√5 find xsquare + 1/xsquare

Answers

Answered by divyansh5237

here's your answer

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anuragarya39: you answer my question plz

divyansh5237: so that's why

divyansh5237: what?

anuragarya39: 9.divide. 2x³ - 3x² - 17x + 30 by (x-2)

anuragarya39: answer this question ok

divyansh5237: ok

divyansh5237: but where I can tell?

divyansh5237: first ask this question

divyansh5237: on brainly

divyansh5237: then I'll answer to this question

Answered by kishor53

Answer:

x=9-4 root 5

then find x^2 + 1/x^2

Explanation:

(9-4 root 5)^2 + 1/(9-4 root 5)^2

(9)^2 + (-4 root 5)^2 -2×9×4 root 5 + 1/9^2 + (-4 root 5)^2 -2×9×4 root 5

49+80-72 root 5 +1/49+80-72 root 5

129-72 root 5 + 1/129-72 root 5

[129-72 root 5(129-72 root 5) +1]/129-72 root 5

(5280.4+1)/129-72 root 5

5281.4/129-72 root 5

120.055 it is the answer

I hope it is very helpful for you.

Thanks

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