Multiply: (x – 4)(x + 5) (a) x2 + 5x - 20 (b) x2 - 4x - 20 (c) x2 - x - 20 (d) x2 + x - 20

asked Oct 23, 2021 86.5k views

5 votes

Multiply: (x – 4)(x + 5)

(a) x2 + 5x - 20

(b) x2 - 4x - 20

(c) x2 - x - 20

(d) x2 + x - 20

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5 votes

The answer to (x-4)(x+5) is d

Rajeev answered Oct 25, 2021

5.0k points

4 votes

Answer:

Answer is D.

Explanation:

(x – 4)(x + 5)

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

= x2 + 5x – 4x – 20

= x2 + x - 20

Grego answered Oct 29, 2021

by Grego

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