Question

Which set of expressions below does NOT represent equivalent expressions?
1 point
A. 8(3x + 7) and 8(3x) + 8(7)
B. 3(8x + 7) and 11x + 10
C. 7(3x + 8) and 7 ∙ 3x + 7∙ 8
D. 3(7x + 8) and 21x + 24

Answer 1

Answer:

it is B

as, when we simplify LHS,

= 3(8x+7)

= 24x+21

since LHS is not equal to RHS

hence option b is your required answer.

Answer 2

$\sf \Large Solution!!$

A. 8(3x+7) and 8(3x)+8(7)

24x+56 and 24x+56

Both are equivalent.

B. 3(8x + 7) and 11x + 10

24x+21 and 11x+10

Not equivalent.

C. 7(3x + 8) and 7 ∙ 3x + 7∙ 8

21x+56 and 21x+56

Both are equivalent.

D. 3(7x + 8) and 21x + 24

21x+24 and 21x+24

Both are equivalent.