Question

use expression to solve (2x+1)square​

Answer 1

Answer:

${(2x + 1)}^{2} \\ we \: know \: that \\ {(x + y)}^{2} = {x}^{2} + {y}^{2} + 2xy \\ so \\ {(2x + 1)}^{2} = {(2x)}^{2} + {(1)}^{2} + 2 \times 2x \times 1 \\ = 4 {x}^{2} + 1 + 4x$

Answer 2

Answer Identity:

(a+b) square : a square +2ab +b square

(2x +1) square =(2x) square+2(2x) (1) + 1 square

=4x square +4x +1 square

Step-by-step explanation: