exam
Maths Puzzle
Numerical Ability
how do u factor a polynomial when it is a^2-4 is that prime since there are no factors that can be simplyfied is there a step by step solution?
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exam Other Question
Please tell me if I have correctly simplified the following equation.
sqrt20/5-1/sqrt5 written as a fraction the 20 is under the sqrt and over 5 subtracted from 1 over sqrt 5.
I get 1 over 5 sqrt 5.
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