Question

if one root of (a-4)x^2+2+1=0 is 1 then the value of a​

Answer 1

Answer:

$(a - 4) {x}^{2} + 2 + 1 = 0 \\ (a - 4) {x}^{2} = - 3 \\ (a - 4)1 = - 3 \\ a - 4 = - 3 \\ a = - 3 + 4 \\ a = 1$

Answer 2

Answer:

$\huge\fcolorbox{red}{yellow}{hi}$