Respuesta :

mikaeladeel
(x + 4)(x - 7) = x^2 - 7x + 4x - 28

= x^2 - 3x - 28
xxXjustxpeachyXxx

Answer:

X x X=x²

X x -7=-7x

4 x X=4x

4 x -7=-28

-7x + 4x=-3x

x² + -3x -28

hope that helped :)

Step-by-step explanation:

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