Question

m²
2m-10 +
25
10-2m, якщо m =25​

Answer 1

$m = 25$

${m}^{2} = {25}^{2} = 625$

$2m - 10 + 25 = 2 \times 25 - 10 + 25 = 50 - 10 + 25 = 40 + 25 = 65$

$10 - 2m = 10 - 2 \times 25 = 10 - 50 = - 40$