Sandy evaluated the expression below. (negative 2) cubed (6 minus 3) minus 5 (2 + 3) = (negative 2) cubed (3) minus 5 (5) = 8 (3

Question

3 years ago

11

) minus 25 = 24 minus 25 = negative 1 What was Sandy's error?

2 answers:

olasank [31] · Answer 1 · 2022-03-11T20:48:36+03:00

Answer:

she wrote

$(-2)^3= 8\\instead\ of\ (-2)^3= -8$

Step-by-step explanation:

For proper understanding let us format the question properly

Given the expression

$=(-2)^3(6-3)-5(2+3)\\=(-2)^3(3)-5(5)\\=8(3)-25\\= 24-25= -1$

Sandy's error can be observed in the second line of the solution where she made the mistake of writing $(-2)^3= 8$ instead of $(-2)^3= -8$

hence the solution is supposed to be

$=(-2)^3(6-3)-5(2+3)\\=(-2)^3(3)-5(5)\\=-8(3)-25\\= -24-25= -49$

OleMash [197] · Answer 2 · 2022-03-11T23:09:42+03:00

5 0

Answer:

A is correct answer

Step-by-step explanation: