X^2-2x=-8 add 1 to both sides
x^2-2x+1=-7 now the left side is a perfect square
(x-1)^2=-7 take the square root of both sides
x-1=±√-7 add 1 to both sides
x=1±√-7 which is
x=1±i√7 so
x=1+i√7 and 1-i√7
Answer:
$2.90 %Step-by-step explanation:
because if you round it it would be close to 90 and if you mutiply 2 x 2 =4 x 89
