172 – 152 = (17 x 17) – (15 x 15)
= 289 – 225
= 64
koreksi mungkin
kemungkinan 1
17² – 15²
(17 x 17) - (15 x 15)
289 - 225
64 ( C)
kemungkinan 2
172 - 152
20
semoga bermanfaat
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Verified answer
172 – 152 = (17 x 17) – (15 x 15)
= 289 – 225
= 64
koreksi mungkin
kemungkinan 1
17² – 15²
(17 x 17) - (15 x 15)
289 - 225
64 ( C)
kemungkinan 2
172 - 152
20
semoga bermanfaat