Question

x(x+1)+3=2(2x+1)+4 how can I solve this​

Answer 1

Answer:

x^2 + x + 3 = 4x + 6

x^2 - 3x - 3

Answer 2

$x(x + 1) + 3 = 2(2x + 1) + 4 \\ {x }^{2} + x + 3 = 4x + 2 + 4 \\ {x}^{2} + x + 3 = 4x + 6 \\ {x}^{2} + x - 4x + 3 - 6 = 0 \\ {x}^{2} - 3x - 3 = 0$