A) 45x (x + 1) - 3 ( x - 2) = b) 7 (4y - 3) - ( - 6y - 1 ) = c) - 8 ( b - 8) - 3 (- b -...

Question

A) 45x (x + 1) - 3 ( x - 2) =
b) 7 (4y - 3) - ( - 6y - 1 ) =
c) - 8 ( b - 8) - 3 (- b - 6) =
d) 2 ( 6 - a) - 4 ( 3 - 0.5a) =

Answer 1

A) 45x (x + 1) - 3 ( x - 2) =45x^2+45x-3x+6=45x^2+42x+6 b) 7 (4y - 3) - ( - 6y - 1 ) =28y-21-6y+1= 22y-20 c) - 8 ( b - 8) - 3 (- b - 6) = -8b+64+3b+18 = -5b+82 d) 2 ( 6 - a) - 4 ( 3 - 0.5a) =12-2a-12+2a=0