exam Maths Puzzle Numerical Ability

Simplify: -(-10)

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exam Other Question

Perform the indicated operation:
a. (8x3 - 3x2 + 7x - 5) + (-2x3 - 3x - 10)

b. (8x3 - 3x2 + 7x - 5) - (-2x3 - 3x - 10) Use the quadratic formula to solve the following equations. Show all major steps involved and leave solutions in radical form (when applicable).

b: 2x^2 - 5x = 3
c: 5x^2 - 2