3 years ago

Multiply: (x – 4)(x + 5)

Mathematics

1 answer:

denpristay [2]3 years ago

3 0

Answer:

D. x2 + x - 20.

Step-by-step explanation:

(x – 4)(x + 5).

= x(x + 5) -4(x + 5).

= x2 + 5x – 4x – 20.

= x2 + x - 20.

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