Question

9x^2-9x-18=0 so what will be ans​

Answer 1

9x^2-9x-18=0

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

9x+2=21x-18=0

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

Answer 2

Explanation:

Formula

`(-b +/- √(b^2 - 4ac) )/(2a)`

Givens

a = 9

b = - 9

c = -18

Solution

`(- (-9) +/- √((-9)^2 - 4*9*(-18)) )/(2*9)\\\\(9 +/- √(81 + 4*9*18) )/(18) \\\\(9 +/- √( 81 + 288) )/(18)\\\\`

9 +/- √369

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18

9 +/- 3*√41

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18

x = 9 +/- 19.209

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18

x = 1.567

or

x = -.567