exam Maths Puzzle Numerical Ability

Factor completely:
x to 2nd power + 8x - 20

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exam Other Question

sketchthe feasible region(in Quadrant 1 only) for the following system of linear inequalities. show all work

x - 5y < 0
8x - 15y < 40
3x + 4y < 92
-4x + 9y < 78
x > 0 and y > 0 Solve the system of equations by substitution

y = x^2 + 2x - 2 and y - 3x + 4