Step-by-step explanation:
Firstly, there's a typing error at (x=1)². I assume it is (x-1)². If my assumption is correct,then:
x²-2x+1-4x=x²-2x+1
x²-6x+1-x²+2x-1=0
-4x=0
x=0
It would be 3,000 as it is the next thousand. Since 2,641 is over 2,500 you can round to the next thousand 3,000
78×45/100
=35.1. As a result, 35.1 is 45% of 78. Hope it help!
