Question

(2+3root5)^2 expand using the formula (a+b)^2

Answer 1

here is the answer........

Answer 2

Answer:

Step-by-step explanation:

(2 + 3root 5)*2 =

2*2 + 2 x 2 x 3root5 +3root5*2

= 4 + 12root 5 + 45

=49 + 12 root 5