exam
Maths Puzzle
Numerical Ability
Find a value for k so that 9m(squared)- kn(squared) will have the factors 3m + 7n and 3m - 7n.
thanks
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exam Other Question
how do u find the perimeter of a triangle with the angles of 12cm ,18cm, 19cm and a height of 12cm
This subject is realy hard for me,
(3a+6)x + y = a
(a*+ a-2)x-y = 2
it says in the book that i have to find out:
1-one answer only
2-there is no answer
3-there is no en