Mathematics
Junior High
Resolved
(ア)(イ)を教えてください🙏
お願いしますm(*_ _)m
5x2+ 9x +13D0
9
x2+
1
= 0
5
D
1
9
x2+
5
+(ア)=ー(7)
9
1
2
1
81
9
x+
10
= ー
5
100
9
(*+)=- 20, 81
10,
100
100
2
9
61
三
10
100
9
x+
10
イ
三
土V61
9
x+
10
ニ
10
土V61
x =
10
9
10
-9±V61
X=
10
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉

丁寧にありがとうございます!
凄く分かりやすかったですm(*_ _)m