book Maths Puzzle Numerical Ability

please show me howto combine like terms in each of these expressions, thanks
(10x^3+6x^2+4x)-8x^3+2x^2-3x
(5x^2+6x+8)(6x^3+2x^2-4x)
8x^2+6x^3+2x+5x

Read Solution (Total 0)

book Other Question

The exact question is 'Write the equation of the horizontal and vertical lines that pass through the given ordered pair.' The ordered pair is (7,2), also i have many more of this t Please help me solve this problem.

36-8/2
(36-8)/2