Question

simplify ( xy + yz )^2 - (xy - yz)^2​

Answer 1

Step-by-step explanation:

(xy+yz)² - (xy-yz)²

x²y² + y²z² +2xy²z - (x²y² +y²z² -2xy²z)

x²y² -x²y² +y²z² - y²z² +2xy²z +2xy²z

4xy²z

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Answer 2

Answer:

Identity exists that

( a + b ) ^ 2 - ( a - b ) ^ 2 = 4ab

Therefore ,

Answer = 4 X xy X yz

             = 4xy^2z

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