Question

c) (4xy + 3y)whole square - (4xy - 3y)whole square = 48xy
verify using sutaible identity​

Answer 1

Answer:

Step-by-step explanation:

(4xy + 3y)² - (4xy - 3y)² = 48xy²

Using identity a² - b² = (a + b)(a - b), we get,

LHS = (4xy + 3y + 4xy - 3y)(4xy + 3y - 4xy + 3y)

= 8xy × 6y

= 48xy² = RHS

Hence proved

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