Question

From the sum of 7 - 2x and 5 + 4x - Sr, subtract the sum of 4x - 7x and -x-x+1.
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Answer 1

Answer:

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Answer 2

Step-by-step explanation:

First, adding 3x

2

+5xy+7y

2

+3 and 2x

2

−4xy−3y

2

+7, we have

= 3x

2

+5xy+7y

2

+3+2x

2

−4xy−3y

2

+7

= 5x

2

+xy+4y

2

+10

Now,

Subtracting 5x

2

+xy+4y

2

+10 from 9x

2

−8xy+11y

2

= (9x

2

−8xy+11y

2

)−(5x

2

+xy+4y

2

+10)

= 9x

2

−8xy+11y

2

−5x

2

−xy−4y

2

−10

= 4x

2

−9xy+7y

2

−10