exam Maths Puzzle Numerical Ability

Is there anyone who understand how to solve equations involving radicals?

√ (8x-5) - √ (7x � 1) = 0
n= √ (n� - 2n -4)
√ (3x � 2) = x � 2
√ (-x)

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exam Other Question

31. e^ln(3) =
s. 1
b. 2
c. 0
d. e

Can someone help me out with this?

Eddie
Determine whether each statement is true or false. If it is false, provide a counterexample.

If a quadrilateral is equilateral, then it is equiangular.