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2 years ago

6. The value of the polynomialx2 -x -1 at x = -1 is *

Mathematics

1 answer:

Licemer1 [7]2 years ago

7 0

Answer:

-2

Step-by-step explanation:

Replace x with -1

(-1)2 - (-1) - 1

-2 + 1 - 1

-2

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2 years ago

Find the difference between the result of one sixth of product of 10 and 3 multiplied by 4 and 30

kherson [118]

Answer:

10 or -10,

Read the explanation

Step-by-step explanation:

Rewrite this problem as a numerical expression. As per the wording of this problem, there can be two expressions derived.

1. $((\frac{1}{6}(10*3)*4)-30$

2. $30-((\frac{1}{6}(10*3)*4)$

Simplify, remember the order of operations. The order of operations is the sequence by which one is supposed to perform operations in a numerical expression. This order is the following:

1. Parenthesis

2. Exponents

3. Multiplication or division

4. Addition or Subtraction

Use this sequence when simplifying and solving the expression:

Expression 1

$((\frac{1}{6}(10*3)*4)-30\\\\=((\frac{1}{6}(30)*4)-30\\\\=(5*4)-30\\\\=20 - 30\\\\= -10$

Expression 2

$30-((\frac{1}{6}(10*3)*4)\\\\=30-((\frac{1}{6}(30)*4)\\\\=30-(5*4)\\\\= 30-20\\\\= 10$

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3 years ago

6. The value of the polynomialx2 -x -1 at x = -1 is *​

6. The value of the polynomialx2 -x -1 at x = -1 is *