04-19-2022, 04:34 PM

@BRAHMA BLUES

Sir in question 20 is the ans 7

but i got is x(x+4)=77

x^2+4x=77

x^2+4x+2^2=77+4

(x+2)^2=81

x+2=route81

=9

will this be correct

Sir in question 20 is the ans 7

but i got is x(x+4)=77

x^2+4x=77

x^2+4x+2^2=77+4

(x+2)^2=81

x+2=route81

=9

will this be correct