Question

(X - 7) is on the factor of (x2 - 4x - 21) Find the other.​

Answer 1

Answer:

Pls. Mark me the brainliest if you really like it.

Step-by-step explanation:

Answer 2

Answer:

Given:    (x - 7) is factor of x² - 4x -21

then,

      x = 7 will also be factor of x² - 4x - 21

now,

    factorisation of  x² - 4x - 21,

            ⇒ x² - 7x + 3x - 21

            ⇒ x( x - 7) + 3( x - 7)

            ⇒ (x + 3)(x - 7)

as we know, that

           x - 7 is factor of x² - 4x - 21

then,

        (x - 3) is also factor of  x² - 4x - 21

hope u will be helped by this.

mark this as brainliast.