exam
Maths Puzzle
Numerical Ability
Please help me.
Solve by completing the square.
2x^2+10x+11=0
I get-5+-sqrt23/2
not sure how I got there. Is it right? How should I work it out.
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exam Other Question
Given the following values 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, x, and y, form:
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A linear equation in two variables
A quadratic equatio
If ln 4=1.3863, ln 3=1.0986, and lf 5=1.6094, find ln 3/20?