Math, asked by kumarkrrish1298, 1 month ago

At how many points does the cubic polynomial (x+1) (x+3) x intersect with X-axis​

Answers

Answered by manishadhiman31
3

Answer:

f(x)=x3−1

it intersect x-axis if

f (x) = 0

x3−1= 0

(x−1)(x2+x+1)=0

⇒(x−1)=0 or (x2+x+1)=0

⇒x=1  because (x2+x+1)=0 has no real

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