Question

What must be added to 4x^ 2 -12 x + 7 to make it a whole square

Answer 1

Hey mate this is your answer = 2
and the solution is
4x^2-12x+7=
add 2 then (2x)^2-2×2x×3+(7+2)=( 2x-3)^2
so the right answer is 2

hope it help you
please mark as brainlist

Answer 2

Step-by-step explanation:

4x² -12x +7

(2x)²-2*2x*3+(7+2)

(2x-3)²

ans - 2 must be added to make it a whole square