Question

Add: 3x^2y , - 9xy^2 , 7x^2 , 2x^2 y​

Answer 1

Given: $3x^2y,-9xy^2,7x^2,2x^2y$

We have to add the above equations.

As we know that adding two or more numbers together is known as an addition.

Addition as denoted by(+).

Following are the properties of addition:

• Identity property of zero.
• Inverse property.
• Commutative property.
• Associative property.

We are solving in the following way:

We have,

$3x^2y,-9xy^2,7x^2,2x^2y$

$=>3x^2y+-9xy^2+7x^2+2x^2y\\=>3x^2y-9xy^2+7x^2+2x^2y\\=>5x^2y-9xy^2+7x^2$

Hence, the solution of the above equation is$5x^2y-9xy^2+7x^2$.