exam
Maths Puzzle
Numerical Ability
find 2 solutions for "n"
14n^2=25n+25
which leads to.. 14n^2-25n-25=0
help pleasee
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I have these problems and in need of help . Please explane and help me . Thanks .
For f(x) = 5x - 4, find f (-1).
Perform the indicated operations:
(x2 - 4x + 1) - (-8x2 + 2x - 6) - (x2 + 3x - 5)
x-y=5; x+y=3