Find all real solutions to\[100x^2+20x+1=16.\]If you find more than one, then list the values separated by commas.
100x^2 + 20x + 1 = 16
Factor the left side as
(10x + 1) ( 10x + 1) = 16
(10 x + 1)^2 = 16 take both roots
10x + 1 = 4 10x + 1 = -4
10x = 3 10 x = -5
x = 3/10 x = -5/10 = -1/2
THX to the guest for catching my earlier boo-boo !!!!
You messed up on the last step for the left side the answer for the left side is 3/10 not 10/3.
THX....working too fast....I'll correct that !!!!