paigecordell6 paigecordell6

16-03-2015
Mathematics

Answered

In steps explain how to work 100x^2+180x+81

Answer :

Panoyin Panoyin

16-03-2015

100x² + 180x + 81
100x² + 90x + 90x + 81
(10x + 9)(10x + 9)
   or
100x² + 180x + 81 = 0
x = -180 +/- √(180² - 4(100)(81))
      2(100)
x = -180 +/- √(32400 - 32400)
      200
x = -180 +/- √(0)
200
x = -180 +/- 0
   200
x = -180
   200
x = -9/10

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