exam
Maths Puzzle
Numerical Ability
I need so help with this problem.
given that (3x-a)(x-2)(x-7)=3x^3-32x^2+81x-70 what is the value of a?
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exam Other Question
m=2(x+n)
so far i did this:
m=2(x+n)
m=2x+2n
-2n -2n
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m-2n=2x
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2 2
m???= x
can you divide 2n by 2?
solve
x + (3/x)=19x