87.0k views
3 votes
9x^2-9x-18=0 so what will be ans​

2 Answers

4 votes

Answer:

9x^2-9x-18=0

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

9x+2=21x-18=0

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

User Gfrost
by
9.0k points
5 votes

Answer:

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

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

18

9 +/- 3*√41

==========

18

x = 9 +/- 19.209

=========

18

x = 1.567

or

x = -.567

User Birdamongmen
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories