Respuesta :

Simplify
1
×
4
1×4 to
4
4.
2

4

1
×
5
1
2−4−1×
1
5



2 Cancel
1
1.
2

4

5
2−4−5

3 Simplify
2

4
2−4 to

2
−2.

2

5
−2−5

4 Simplify.

7
−7 answers is -7