Question

Which expression is equivalent to 19x − 6x + 2 and why? (1 point)


15x, because 19x − 6x + 2 = 13x + 2 = 15x

11x, because 19x − 6x + 2 = 19x − 8x = 11x

2 + 13x, because (19x − 6x) + 2 = 13x + 2 = 2 + 13x

2 − 13x, because (19x − 6x) + 2 = −13x + 2 = 2 − 13x

Description

Answer 1

any ideas ?

Answer 2

hmm
im thinking and i said thinking it might be "C"

Answer 3

good! you're correct

Answer 4

oh ok
XD thx

Answer 5

XD
np

Answer 6

Step 1: 8 + 16x

Step 2: 4(4) + 4(12x)

Step 3: 4(4 + 12x)

Step 4: Dimensions of the rectangle are 4 and 4 + 12x



In which step did the student first make an error and what is the correct step? (1 point)


Step 3; 4 + (4 + 12x)

Step 3; 4 + (4 ⋅ 12x)

Step 2; 4(2) + 4(4x)

Step 2; 4(2) + 4x(2)