exam Maths Puzzle Numerical Ability

Give exact and approximate solutions to 3 decimal places.

x^2 - 7x + 5 = 0

The exact solutions are: _______

The approximate solutions to 3 decimals places are: _

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exam Other Question

I need your help how do you solve x^2-2x-9=0 One leg of a right triangle is 2 inches smaller than the hypotenuse. The other leg is 5 inches long. What are the lengths of the unknown leg and hypotenuse?

Not sure if I set it up right.

(x+2)^2 + 5^2 = x^2