Mathematics
Senior High
どうして-1を代入したら0になるってわかるんですか、、
< 4 step) (5) (3
2x²-x² + (a - 2 ) x + A = Op 22
Fa
5
(APP) P(x) = x²-x² + (0-²) x + al
xtad
P(-22 = -1-1-(a-2) + a
= 0
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