exam
Maths Puzzle
Numerical Ability
what is the answer to -2x2 + 5x = 0
15c2 - 12c = 48
m2=4m - 4
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exam Other Question
i need explanation on the following if someone can help me understand the steps to these problems they are all but one in the back of the book but i want to understand them i have
if (1+x+x^2)= a0+a1x+a2x^2+a3x^3+........+a2nx^2n then show that
a0+a3+a6+......= 3^(n-1)