Mathematics
Senior High
Resolved
(3)の解説お願いします🙏
-a)
C
2
2) (4x-5a) (4x + 5a)
= 16x²-25a²
(3) (-x-2)²
-(x+2)
=(x+4x+4)
=+x²+4x+4
(4) (x-a) (α + x)
-(a-x) (a+x)
(a²x²)
2
-
a² + x2
Answers
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