Question

Who am I?
(a) I am the pair of like terms in 5x (3-8y) and 6(xy + x2)

(b) I am the coefficient of abc in 3a²cb + 9abc - 2c2b-1

(c) I am numerical value of -a + b-c if a = 1, b= a + 1, c= a +2

(d) I am the expression for number of diagonals that can be made from one vertex of a 'n' sided polygon. Correct the following algebraic expressions​

Answer 1

Answer:

(a) 40xy and 6xy

(b) 9

(c) -2

Step-by-step explanation:

(a)

5x(3-8y) = 15x - 40xy

6(xy+x²) = 6xy + 6x²

(b) 3a²cb + 9abc - 2c2b-1

(c) -1+(1+1)-(1+2) = -1+2-3 = -2

(d) Sorry not sure about this one :(