English, asked by kaushiki37, 10 months ago

Multiply: (x – 4)(x + 5)

(a) x2 + 5x - 20,

(b) x2 - 4x - 20,

(c) x2 - x - 20,

(d) x2 + x - 20.

Answers

Answered by Anonymous

3

Hey mate...

here's the answer...

(x – 4)(x + 5).

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

= x2 + 5x – 4x – 20.

= x2 + x - 20.

Hope it helps ❤️

Answered by suman682

1

(x – 4)(x + 5)

x2 + 5x - 4x - 20

x2 - x - 20

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