exam Maths Puzzle Numerical Ability

Simplify



25^(3/2)

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exam Other Question

(10+(square root 20))-(4-(square root 45))
I got 12+2(square root 20)-2(square root 45)
Am I even close?
Use the distributive property to remove the parentheses in the following expression. Then simplify your result if possible.

1/4 (20 + 16)