book Maths Puzzle Numerical Ability

z-12=6 how do I work this out

Read Solution (Total 0)

book Other Question

division

4x^5+10x^4-16x divide by 4x^2

having problems please show work
Use parabolas to work the following problem: find two numbers having a sum of 50 such that the sum of the square of one and three times the square of the other is a minimum.