using the identity solve (x+4) (x-5)
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Answer:
x²−x−20
Step-by-step explanation:
(x+4)(x−5)
=(x+4)(x+−5)
=(x)(x)+(x)(−5)+(4)(x)+(4)(−5)
=x2−5x+4x−20
=x²−x−20
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