Question 698749
Solution:)
( x + 2)( x + 7 ) = 6 
=> x^2 + 2x + 7x + 14 = 6
=> x^2 + 11x + 14 - 6 = 0 
=> x^2 + 11x + 8 = 0 
use the formula : 
Solution by SOLVE quadratic equation with variable:
=> x =  [ -b +/- sqrt ( b^2 - 4ac ) ] / 2a 
x = [ -11 +/- sqrt ( 11^2 - 4(1)(8))] / 2a
x = [ -11 +/1 sqrt ( 121 - 32 ) ] / 2 
x = [ -11 + sqrt (89) ] / 2 
x = [ -11 + 9.434 ] / 2         or  x = [ -11 - 9.434 ] / 2  
x = -1.566 / 2                      x = [ -20.434 / 2 ] 
x = - 0.783                         x = - 10.217