Question

please answer this question guys....
please #####​

Answer 1

ITS GIVEN THAT

x-√5 is factor

therefore

x = √5

x^3 - 3√5x^2 -5x+15√5

put the value of x

(√5)^3-3√5(√5)^2-5(√5)+15√5

25 -15√5-5 √5 + 15√5

25- 5√5

THIS IS CORRECT ANSWER

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