✨ Best Answer ✨
https://share.google/WsLm9G9ArFRPqoQ0Z
因数分解したときの
a³−b³=(a−b)(a²➕️ab+b²)
↑ここの符号が違ってます
Mathematics
Senior High
Resolved
(1)(3)の問題教えて下さい
どこが違ってますか？
Date
(1)x3-27:0
3+ (-3)=0
/(x-3)(x2-6x+9>=0
x-3=0 x² = 6x+9=0
X = 3
(2)x3+8=0
x² + 2 = 0 (0
(x+2)(x²+4x+4)=0
x+2=0, x²+ 4 x + 4 = 0
X=-2
(3)x3=64
X3-640
7267+9
(x= -(-6)±√√(-612-4x1×9
2
=6±N36-36
2
6
3
2
HA
-3 ± 3 √√√3 2
x = 3
26
x=(2-2)±√(272-4×14
2
2 IN4-16 (12)
2
-1±√3
x =
=
121-243
-(-8)IN-812-4x/x/6
2
8 ± №64-640
2
x= -2, 1± √3
=-x3-43=0
84
==
===
4
(x-4)(72-89+16)=0
2
x-4=0, x²-8x+16=0
x=4
13019
X=4
/
- 212 √√√32
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
