Question

(a-5)×(a+4) with explanation​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

a^2-a-20

Explanation:

(a-5)×(a+4)

or, ((a-5) *a) +((a-5) *4)

or, (a^2-5a)+(4a-20)

or, a^2-a-20

Hope it helps.