Find the solution of 3x1.5+4x1.6=4.5 [2 MARKS]
Concept: 1 Mark Application: 1 Mark 3x1.5+4x1.6=4.5 x0.5+x0.4=4.5 2x+2.5x=4.5 4.5x=4.5 x=1
Question 84 (xi)
Simplify
(4.5a+1.5b)2+(4.5b+1.5a)2
(4.5)2−(1.5)2