plzz solve question 15 and also show working steps.THANKS IN ADVANCE♡

Question

Arun · Answer

Dear Ritish we can write it as 98 + sqrt (x^3 &ndash; x^2 &ndash; 12 x + 36) = 10^2 sqrt (x^3 &ndash; x^2 &ndash; 12 x + 36) = 100 &ndash; 98 = 2 squaring both the sides (x^3 &ndash; x^2 &ndash; 12 x + 36) = 4 (x^3 &ndash; x^2 &ndash; 12 x + 32) = 0 Now use have to use hit and trial or put the options to check the answer as we have no method to solve cubic polynomial however it is correct for x = &ndash; 4

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plzz solve question 15 and also show working steps.THANKS IN ADVANCE♡

plzz solve question 15 and also show working steps.THANKS IN ADVANCE♡

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