Question

expand(2n-1) (2n+3(​

Answer 1

Step-by-step explanation:

(2n-1) (2n+3)

=

${4n}^{2} + 6n - 2n - 3$

${4n}^{2} + 4n - 3$

Answer 2

Step-by-step explanation:

it is in the form of (x+a)(x+b) =x²-xb-xa+ab

x=2n

a=1

b=3

(2n-1)(2n+3)

=2n²-2n×3-2n×1+1×3

=4n-6n-2n+3

=-2n-2n+3

=3