Question

(x+8)(x-2),(x+4) (x-9)
,(x-7) (+4)
​

Answer 1

1) (x + 8) (x - 2)

= x^ 2 - 2x + 8x - 16

= x^ 2 + 6x - 16.

2) (x + 4) (x - 9)

= x^ 2 - 9x + 4x - 36

= x^ 2 - 5x - 36.

3) It is incomplete. I think you are trying to tell (x - 7) (x + 4)

= x^ 2 + 4x - 7x - 28

= x^ 2 - 3x - 28.

Hope it helps you.

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