Question

спростіть вираз (а+3)²+(а-4)(а+2)​

Answer 1

${(a + 3)}^{2} + (a - 4)(a + 2) = {a}^{2} + 6a + 9 + {a}^{2} + 2a - 4a - 8 = {2a}^{2} + 4a + 1$