Question

El valor de la expresión
5√16-4√49-3√4+ √9​

Answer 1

$5 \sqrt{16} - 4 \sqrt{49} - 3 \sqrt{4} + \sqrt{9} = \\ 5 \sqrt{ {2}^{4} } - 4 \sqrt{ {7}^{2} } - 3 \sqrt{ {2}^{2} } + \sqrt{ {3}^{2} } = \\ 5 \times {2}^{2} - 4 \times 7 - 3 \times 2 + 3 = \\20 - 28 - 6 + 3 = \\ - 8 - 6 + 3 = \\ - 14 + 3 = \\ - 11$