Question

x^3-8x^2+5x-81 plz solve that question.........​

Answer 1

Answer:

(x+2)(x−5)2

.

Explanation:

We know that if a number solves such an equation, it must divide its last coefficient, i.e.

50

. So, we can try with some of its divisors: if

f(x)=x3−8x2+5x+50

, then:

f(1)=48≠0

;f(−1)=36≠0

f(2)=36≠0

f(−2)=0 .So, −2

is a solution, which means that

f(x) can be divided by (x+2)

. Do the long division, and you have that

x3−8x2+5x+50

=(x+2)(x2−10x+25)

Now we must factor the second parenthesis, but you can see that it is the square of

(x−5) , and so

f(x)

is completely factored

i think your statement is wrong there should be a 50 on place of 81

sorry

please mark it brainliest

hope it helps you ❤️

have a gud day