book Maths Puzzle Numerical Ability

Use the method of "completing the square" to solve the following quadratic equations:

{{{2x^2-7x-4=0}}}

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book Other Question

midpoints in the coordinate plane You have borrowed $200000 at 7% p.a taken over 25 years
a)How much is the standard monthly payment?
b)How much interest is paid over the term of the loan?
c)If you make fortnig