Question 3(vi) Simplify: (1.5x-4y)(1.5x+4y+3)-4.5x+12y
Question 66
If x varies inversely as y and y = 60 when x = 1.5. Find x, when y = 4.5
Simplify: (1.5x−4y)(1.5x+4y+3)−4.5x+12y