exam
Maths Puzzle
Numerical Ability
grouping symbols in the proper place so that the given value of the expression is obtained. The value of the expression should be 28.
5 - 3 x 2 + 8 x 5 - 2 = 28
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exam Other Question
4x +1 = 2x +5
solve for X by completing the square
x2-8x+15
y-15=1(x2-8x)
(1/2)(-8) = -4
-4 to the 2nd power = 16
y-15= 1(x2 -8x +16 -16)
x2-8x+16
(x-4)squared
x = 4