exam Maths Puzzle Numerical Ability

Solve for r.

r^2 + 3r = 5.

The solutions are r = ________.

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exam Other Question

16x2 - 16x + 4 > 0 Solve each rational inequality. State and graph the solution set. Graph using the intercept method: 2x + y = 4.

I am a bit confused on this one, any help would be greatly appreciated. Thanks