exam Maths Puzzle Numerical Ability

radical 18 + radical 12 + radical 8

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exam Other Question

(2p^)(4p^)
(2a)(3a)(4a)
(-ab)(ab)(-7ab)
find (x - 7)2

and

which of the following is a pattern for squaring a binomial, a + b?
a. a2 + 2ab + b2
b. a2 +b2
c. a2 + ab + b2
d. a2 - b2