Math, asked by mgupta7791, 9 months ago

4 x + 3 y whole square - 4 x minus 3 y whole square minus 48 x y

Answers

Answered by BrainlyHero80

k = 48

Step-by-step explanation:

Given,

xy²k = (4xy + 3y)² - (4xy - 3y)²

Applying the formula: (a + b)² = a² + b² + 2ab

xy²k = [(4xy)² + (3y)² + (2 × 4xy × 3y)] - (4xy - 3y)²

Applying the formula: (a - b)² = a² + b² - 2ab

xy²k = [(4xy)² + (3y)² + (2 × 4xy × 3y)] - [(4xy)² + (3y)² - (2 × 4xy × 3y)]

xy²k = [(16x²y² + 9y² + 24xy²)] - [(16x²y² + 9y² - 24xy²)]

xy²k = 16x²y² + 9y² + 24xy² - 16x²y² - 9y² + 24xy²

xy²k = 48xy²

k = $\frac{48xy^{2} }{xy^{2}}$

∴ k = 48

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Answered by olaiyaferami

Answer:

4x+3y=7xy

4x-3y=xy

48*y=48y

Step-by-step explanation:

1.4+3=7 then had the letter that goes first.so the answer ix 7xy

2.4-3=1 and 1 in algebra is an alphabet which gives us= xy

3.48*y= 48y why? because there is no other number before y so the answer is 48y

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