Math, asked by hereisayushh02, 11 months ago

If a, b & c are zeroes of cubic polynomial x^3 + 5x – 2, then the value of a^3 + b^3 + c^3

will be ?? (A) 5 (B) 4

(C) 6 (D) 3
. ....plz solve nd help.

Answers

Answered by nibhatulsyan123

6 explained in pic. see hope u understand.

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hereisayushh02: can u let me know that how a^3 + b^3 + c^3 = 3.abc ? plz..

nibhatulsyan123: in which std. are u

nibhatulsyan123: a cube plus b cube plus c cube - 3abc=(a+b+c)*(...)

nibhatulsyan123: so if a+b+c =0

nibhatulsyan123: then a cube plus b cube plus c cube minus 3 ABC=0

nibhatulsyan123: hence a cube plus b cube plus c cube=3abc

hereisayushh02: i got it..thnks!!... it was just temporarily flushed away from my mind..

nibhatulsyan123: ok

nibhatulsyan123: welcome

nibhatulsyan123: please select as brainliest

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