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29-05-2024
Mathematics

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Answer :

29-05-2024

Answer: [tex]x^{2} +9x+20[/tex]

Step-by-step explanation:

Multiply the two sides given to find the area:

[tex](x+4)(x+5)\\x^2+5x+4x+20\\x^2+9x+20[/tex]

Polynomial in standard form means all terms are combined and exponents are in descending order.

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