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Maths Puzzle
Numerical Ability
Determine whether the following equations have a solution or not? Justify your answer.
a) 5x2 + 8x + 7 = 0
b) (7)1/2y2 - 6y - 13(7)1/2 = 0
c) 2x2 + x - 1 = 0
d) 4/3
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book Other Question
The problem asks me to solve usling any method.
5x+6y=14
y=4x-17
I am not sure which method to use. I tried both but did not come out with the same answer both times! Thanks for your help!
Use the properties of Logarithms to evaluate:
Log sub3 9+Log sub3 36-log sub3 4.