Question

Addition of 3y² and (-7y²) is​

Answer 1

Answer:

-4y²

Step-by-step explanation:

at first

 3y² and (-7y²)

= 3y² + (-7y²)

= -4y²

Answer 2

Answer:

It's very easy. Here you go.

Step-by-step explanation:

Firstly we will write 3y^2 + (-7y^2). Then, to remove the bracket, we need to multiply the signs inside and outside the brackets. On doing so, we'll get + and - is minus. So it will be 3y^2 - 7y^2. On subtracting we get, 4y^2 and put the sign of the greatest no. So, it is...

3y^2 + (7y^2) = 3y^2 - 7y^2 = -4y^2

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