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Zinaida [17]
3 years ago
9

I need help I have to indicate how many terms it contains then copy and simplify each expression by combining like terms

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
6 0

Answer:

b) −3y2−2x+1

d) −4xy+4y2−y−10

Step-by-step explanation:

b) -4x <u>+ y2</u> <em>- 9</em> <em>+ 10</em> - x + 3x<u> - 4y2</u>

<u>(i have just underlined, italic and made it bold to show the like terms)</u>

-4x - x + 3x = -2x

y2 - 4y2 = -3y2

-9 + 10 = 1

-2x - 3y2 + 1

d) 0 - 20 <u>- 5xy</u> + 4y2 + 10 - y <u>+ xy</u>

<u>(i have just underlined, italic and made it bold to show the like terms, however the '-y' and '4y2' have no like terms)</u>

0 - 20 + 10 = - 10

-5xy + xy = - 4xy

-10-4xy+4y2-y

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