Simplify the following​

1) 11

2) 2

3)

4)

5) -2

6)

Step-by-step explanation:

1) 2 + 3 -

=(2 × 2 )+ (3 × 4) - 5

= 4 + 12 - 5

= 11

2) 4 -2 +

= (4 × 2) - (2 × 7) + 8

= 8 - 14 +8

= 2

3) 5 - 3

= 5× - 3× + 4× + 2×

=

=

4)

=

=

5)

=

= -2

6)

=

= 2× - 2× -

=

=

Hope the working out is clear and will help you. :)

Step-by-step explanation:

please I solved the question in the diagram above

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base