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3 years ago

12

The area of a rectangular desk is given by the trinomial

la1" title=" d^{2} -7d-18" alt=" d^{2} -7d-18" align="absmiddle" class="latex-formula">.what are the possible dimensions of the desk? Use factoring.

1 answer:

SSSSS [86.1K]3 years ago

4 0

D^2-7d-18

d -9

d +2

(d-9)(d+2)

d-9=0 d=9

d+2=0 d=-2

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