exam Maths Puzzle Numerical Ability

Simplify

2 sq rt 5 (8 sq rt 7 + 3 sq rt 5)

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exam Other Question

identify the center of the circle (x+2)^2+(y-1)^2=9 I got -1,1? The base -2 numeral 10111 is defined to be (-2)^4 +(-2)^2 +(-2)^2 + (-2)^1 + (-2)^0, which has a value 16 +4 -2 +1 or 19. Find the value of the base -2 numeral 11001.
Thanks for helping.