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Anarel [89]
3 years ago
5

9x^2-9x-18=0 so what will be ans​

Mathematics
2 answers:
Phantasy [73]3 years ago
8 0

Answer:

Step-by-step explanation:

Formula

\frac{-b +/- \sqrt{b^2 - 4ac} }{2a}

Givens

a = 9

b = - 9

c = -18

Solution

\frac{- (-9) +/- \sqrt{(-9)^2 - 4*9*(-18)} }{2*9}\\\\\frac{9 +/- \sqrt{81 + 4*9*18} }{18} \\\\\frac{9 +/- \sqrt{ 81 + 288} }{18}\\\\

9 +/- √369

=============

      18

9 +/- 3*√41

==========

      18

x = 9 +/- 19.209

     =========

        18

x = 1.567

or

x = -.567

dusya [7]3 years ago
7 0

Answer:

9x^2-9x-18=0

9x+2=11x-9x-18=0

9x+2=21x-18=0

9x+2=3x-3^=0

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