Question

factorise 4 x square + 28 x + 49​

Answer 1

Hope it helps

You can also use the identity of ( a+ b)^2

Answer 2

$\mathfrak{The\:Answer\:is}$

$4x {}^{2} + 28x + 49$

$= 4x {}^{2} + 14x + 14x + 49$

$= 2x(2x + 7) + 7(2x + 7)$

$= (2x + 7)(2x + 7)$

$= (2x + 7) {}^{2}$

$\boxed{Hope\:This\:Helps}$