Question

What is to be added to (4x^2 - 12xy) to make the sum a perfect square?

Answer 1

$\huge\color{pink}\boxed{\colorbox{Black}{❥ Answer}}$

4x^2 +12x+5=4[x2 +3x+( 45 )]=4[(x+(

2

3

)

2

−(

2

3

)

2

+(

4

5

))]

=4[(x+(

2

3

)

2

−(

4

4

))]

=4(x+(

2

3

)

2

−4)

hence4mustbeadded

tomakeitperfectsquare.