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Lady_Fox [76]
3 years ago
12

Help me solve -8 + 5 (g+2) - 2

Mathematics
2 answers:
Feliz [49]3 years ago
7 0

Answer:

5g

Step-by-step explanation:

use distributive prop

= -8+5g+10-2

= 5g+2-2

= 5g

goldenfox [79]3 years ago
4 0

- 8 + 5 (g+2) - 2

mutiply the bracket by 5

(5)(g)= 5g

(5)(2)= 10

-8+5g+10-2

-8+10-2+5g ( combine )

2-2+5g

0+5g

Answer:

5g

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Answer:

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Step-by-step explanation:

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1. Kalena was asked to prove ifx(x - 1)(x + 1) = x3 - X represents a polynomial identity. She
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Answer:

C. Kalena made a mistake in Step 3. The justification should state: -x²

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Step-by-step explanation:

Given the function x(x - 1)(x + 1) = x3 - X

To justify kelena proof

We will need to show if the two equations are equal.

Starting from the RHS with function x³-x

First we will factor out the common factor which is 'x' to have;

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Note that for two real number a and b, the expansion of a²-b² using difference vof two square will give;

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Factorising x(x+1) gives x²+x, therefore

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(x²+x)(x-1) = x³-x²+x²-x

The function x³-x²+x²-x gotten shows that kelena made a mistake in step 3, the justification should be -x²+x² not -x-x²

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