Question

find the sum of the following algebraic expressions part 1​

Answer 1

Answer:

i)5xy+(-7xy)+$3x^{2}$

=5xy-7xy+$3x^{2}$

=$3x^{2}$-2xy

ii) -7mn+5+12mn+2+8mn-8-2mn-3

=-7mn+12mn+8mn-2mn+5+2-8-3

=20mn-9mn+7-11

=11mn-4

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