Mathematics, 13.09.2021 03:30, coolcat3190

Replace ∗ with a monomial so that the derived equality will be an identity 1. (15y+ * )=225y²+6x³y+0.04x^6

2. ( * -9c)²=36a^4-108a²c+ *

3. (3a+2.5b)²= * +6.25b²+ *

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Replace ∗ with a monomial so that the derived equality will be an identity 1. (15y+ * )=225y²+6x³y...