Question

Q1) Put the last two terms of the following expression in the parentheses preceded by a minus sign: 2x + 3y - 4z + 7. (choose from the options).

A) 2x + (3y - 4z + 7)

B) 2x + 3y - (4z - 7)

C) 2x + (3y - 4z ) + 7

D) 2x + 3y -4 (z + 7)


Q2) What is the expression for the number of diagonals that we can make from one vertex of a nn sided polygon?

A) 2n+12n+1

B) n-2n−2

C) 5n+25n+2

D) n-3n−3


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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

1. (b) 2x+3y-(4z-7)

hope it is useful