3 years ago

Which expression is equivalent to 7h^2-252k^2?

Mathematics

2 answers:

mars1129 [50]3 years ago

8 0

Answer:

cccccccccccccccc

Step-by-step explanation:

gulaghasi [49]3 years ago

6 0

Answer:

Step-by-step explanation:

252 = 7 *36

36 = 6 *6 = 6²

a² -b² = (a + b)(a - b)

7h² - 252k² = 7(h² - 36k²)

= 7(h² - [6k]² )

= 7(h +6k)(h - 6k)

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