M(2x^2+128x-4096)=0

解

M (2 x^{2} + 128 x - 4096) = 0

M = 0, x = 32 (3 - 1), x = - 32 (1 + 3)

十進法表記

M = 0, x = 23.42562 \dots, x = - 87.42562 \dots

解答ステップ

M (2 x^{2} + 128 x - 4096) = 0

零因子の原則を使用:

ab = 0

ならば

a = 0

または

b = 0

M = 0 or 2 x^{2} + 128 x - 4096 = 0

M = 0

解く

2 x^{2} + 128 x - 4096 = 0 : x = 32 (3 - 1), x = - 32 (1 + 3)

解答は

M = 0, x = 32 (3 - 1), x = - 32 (1 + 3)