Question

Найдите значение выражения -4m^2+4m-1 при m=1/16

Answer 1

- 4m² + 4m - 1 = - (4m² - 4m + 1) = - (2m - 1)²

$- (2* \frac{1}{16}-1) ^{2} =-( \frac{1}{8}-1) ^{2} =-(- \frac{7}{8}) ^{2} =- \frac{49}{64}=-0,765625$