✨ Best Answer ✨
4) (a+b-c-d)(a-b-c+d)
a-c＝X
b-d＝Y
とおくと、
(X-Y)(X+Y)
＝X2-Y2
＝(a-c)2×(b-d)2
＝a2+b2+c2+d2-2ac-2bd
Mathematics
Senior High
Solved
(4)の展開の仕方と(1)の因数分解の仕方がわからないです。教えてください。
(4) (a+b-c-dXa-b-c+d)
c-d)ca-6-(c-d)
18 次の式を因数分解せよ。
(1) 2x°+2x°y-6x?
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
ありがとうございます🙇⋱♀️