Question

what should be subtracted from 9x^{2} y to get 4x^{2} y?

Answer 1

Answer:

Let the algebraic expression that has to be subtracted be a. Then,

x  

2

−4xy−y  

2

−a=1

a=x  

2

−4xy−y  

2

−1

which required algebraic expression.

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Answer 2

Answer:

5x²y

Step-by-step explanation:

9x²y-4x²y

5x²y

therefore we need 5x²y