book Maths Puzzle Numerical Ability

the sum of two numbers is 8. their difference is 12. find the numbers.

Read Solution (Total 0)

book Other Question

i have a probel. i cant solve this question. DETERINE THE COEFFICIENT OF THE (A TO THE THRID POWER) TERM IN THE EXPANSION OF (A+1) TO THE TENTH POWER> All solutions are real numbers

5n^2=-12n-1