Answer:
x = 3 And x = - 14
Step-by-step explanation:
Given expression as :
[tex]x^{2}+ 11x - 42 = 0[/tex]
Or, [tex]x^{2}+ 14x - 3x - 42 = 0[/tex]
Or, x (x + 14) - 3 (x + 14) = 0
Or, (x + 14) (x - 3 ) = 0
I.e (x + 14 ) = 0 And (x - 3 ) = 0
∴ x = 3 And x = - 14 Answer
