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14-08-2020
Mathematics

contestada

When the solution of x2 + 9x - 9 is expressed as
9&
2
what is the value of r?
X
-btvb2 - 4ac
2a
117
O 54
045
09

When the solution of x2 9x 9 is expressed as 9amp 2 what is the value of r X btvb2 4ac 2a 117 O 54 045 09 class=

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FaDaReAdEoLa FaDaReAdEoLa

14-08-2020

answer

r = b²-4ac

= 81 + 36

= 117

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