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Natalka [10]
3 years ago
14

8xy-3y^2+5x^2-7xy+12x^2-2y^2-3xy+8y^2

Mathematics
2 answers:
BabaBlast [244]3 years ago
6 0
 8xy-7xy-3xy-3y²-2y²+8y²+5x²+12x²
then simplify by combining like terms -2xy+3y²+17x²
vfiekz [6]3 years ago
5 0
Can combine like terms
remember yo an move terms around
like terms examples
x and 2x are like
3xy^2 and 4xy^2 are like
x and 2x^2 are not
3x^2y and 3xy are not


group like terms together

I like doing it in power order, highest to lowest

5x²+12x²-3y²-2y²+8y²+8xy-7xy-3xy=
(5x²+12x²)+(-3y²-2y²+8y²)+(8xy-7xy-3xy)=
(17x²)+(-3y²)+(-2xy)=
17x²-3y²-2xy
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Answer:

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Step-by-step explanation:

The missing number would be, lets say <em>x</em>.

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The missing number would be 22.

To check this answer, subtract 8 from 22 which would be 14.

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