Question

Simplify and find the value of the following ​

Answer 1

Answer:

(i) Given a= -1 & b= 1 then (a+2b)(a-3b) = (-1 +2×1)(-1 -3×1) = 1×(-4)= -4

(ii) Given x = 0 & y = 1 then (3×0-2×1)(2×0+5×1) = -2×5 = -10