exam Maths Puzzle Numerical Ability

1/a - 3 - 1/a + 3 + 2a/a^2 - 9

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exam Other Question

Please help and solve this graph for me. y=-x^2-2x

x;-3 -2 -1 0 1
y; how do i write this in standard form(8x10to the power 0f 7)+(1x10p of 3)+(5x10)+ (2x1/10)+(9X1/10)