3 or −7.
This equation is solved by taking the number infront of x (in this case an invisible 1) and the last number (4) and multiplying
4
then split that up so that the two numbers equal the middle number when added and the last number when multiplies
2 and 2
now use the Double Bubbles
(x + 2) (x + 2)
This may be re-written as (x+2)2=25.
So x+2=±5.
So x=3 or −7.
