Question

Help, please

1. What is the value of the expression?


[(1+5)⋅2−5]⋅2


2.

Simplify.



12−3(12+1)2


3.

Simplify.


13(1−14)2

Answer 1

1. 14

2.996

3.2

Explanation:

use pemdas

Answer 2

1. 14
2. -495
3. 2197

Explanation:

1.
`((1+5)\cdot 2-5)\cdot 2=(6\cdot 2-5)\cdot 2=(12-5)\cdot 2=7\cdot 2=14`

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2.
`12-3(12+1)^2=12-3\cdot 13^2=12-3\cdot 169=12-507=-495`

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3.
`13(1-14)^2=13(-13)^2=13\cdot 169=2197`