exam Maths Puzzle Numerical Ability

FACTOR THESE Completely? :

1) 6x^2 - 28x + 16

2) x^4 + 2x^3 - 3x - 6

3) x^8 - 1

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exam Other Question

the chairs for a concert are arranged so that each row has the same number of chairs. sarah has 4 chairs in front of her, and 8 chairs behind her. there are 5 seats to her left and 6 to her right. how many chairs are set up? I am a polyhedron. I am a prism. My two basesare hexagons. My other faces are rectangles. What am I called?