Question

Simplify the expression plz

Answer 1

Answer:

C

Step-by-step explanation:

81x-64-49x-27

81x-49x-64-27

32x-91 (C)

Answer 2

(81x-64)-(49x+27)

pretend that there is a +1 in front of the first bracket

pretend that there is a -1 in front of the second bracket

1(81x-64)-1(49x+27)

mutiply the first bracket by 1

(1)(81x)= 81x

(1)(-64)= -64

mutiply the second bracket by -1

(-1)(49x)= -49x

(-1)(27)= -27

81x-64-49x-27

81x-49x-64-27 ( combine like terms)

Answer:

C. 32x-91