22. The area of a rectangular room is given by the trinomial ^2 + 3 - 40. What are the possible dimensions of the rectangle? Use factoring.

Question

Mathematics

Paulina Howe

18 July, 04:26

22. The area of a rectangular room is given by the trinomial ^2 + 3 - 40. What are the possible dimensions of the rectangle? Use factoring.

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Answers (1)

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Adrien Bowman · Answer 1

Step-by-step explanation:

x² + 3x - 40 = x² + 8x - 5x - 5*8

= x * (x + 8) - 5 * (x+8)

= (x+8) * (x-5)

possible dimensions of the rectangle are: (x+8); (x-5)