Amos Chun Yan Wei's answer to .'s Secondary 3 E Maths Singapore question.
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Multiply 2x with 2x you will get 4x^2
Multiply 2x to y you will get 2xy
Multiply y to 2x you will get 2xy
Multiply y to y you will get y^2
Add 2xy+2xy = 4xy
Answer is 4x^2 + 4xy + y^2
Refer to working
Rainbow method.
Multiply 2x to y you will get 2xy
Multiply y to 2x you will get 2xy
Multiply y to y you will get y^2
Add 2xy+2xy = 4xy
Answer is 4x^2 + 4xy + y^2
Refer to working
Rainbow method.
Date Posted:
5 years ago
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