Question

solve with explain to the aanswer​

Answer 1

Answer:this is an algebraic expression

Explanation:2nd: -3a2

3rd: 5xy

Answer 2

Answer:

1. q is not complete..

2.

$( { - 5a}^{2}) - ( {2a}^{2} )$

${ - 5a}^{2} - {2a}^{2}$

${ - 7a}^{2}$

Ansss

3.12xy-(-7xy)

12xy+7xy

19xy(Ans)

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