exam Maths Puzzle Numerical Ability

can you solve using the quadratic formula
x^2+6x-8=0

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exam Other Question

1. Solve for x. Collect xs on the LEFT side. The solution should be presented with x first, the correct inequality symbol, then the number.
x + 7 - 8x - 9 ≥ 3(x - 7)

( How do I determine the slope of a line while looking at a line on a graph?? It says m = ??
Just take the 2 points from y and x and put it parenthsis?? y comes first correct? Am I even close?