S t are positive integers (X +S) (x-t) is expanded - Simplified
The
answer
is x² + Kx-40 where K is a positive integer
work out the
out the smallest possible value of K

Find the difference (8ab+a+2) - (3ab+6)

Rewrite so the subject can be y in the formula d=m-y/y+n

Without multiplying, tell which product is larger and why. 5 × 1/3 or 5 × 2/3 a)5 × 1/3 because 1/3 is less than 2/3 b) 5 × 1/3 because 1/3 is greater than 2/3 c) 5 × 2/3 because 1/3 is less than 23 d) 5 × 23 because 1/3 is greater than 2/3