Question

a + ( a+4) = a × (a + 4 )

find value of a ​

Answer 1

Answer:

$a + (a + 4) = a(a + 4) \\ = > 2a + 4 = {a}^{2} + 4a \\ = > 2a - 4a + 4 = {a}^{2} \\ = > - 2a + 4 = {a}^{2} \\ = > {a}^{2} + 2a - 4$

$= > a = \sqrt{ - 2a + 4}$