Question

4x^2 + 12x + 9 express this in the form (cx + d)^2.​

Answer 1

Answer:

$4x^{2}+12x+9\\\\(2x)^{2}+(3^{2})+2(2x)(3)$

$(a+b)^{2}=a^{2}+b^{2}+2ab$

∴ $(2x)^{2}+(3^{2})+2(2x)(3) = (2x+3)^{2}$

let c = 2 & d = 3

∴ $(cx+d)^{2} = (2x+3)^{2}$

Answer 2

$4x {}^{2} + 12x + 9 = (2x) ^{2} + 2.(2x).(3) + (3)^{2} = (2x + 3) ^{2}$

Mark my answer as Brainliest

Follow me if I was helpful, you can ask me your math queries without any hesitation :)