Mathematics
Junior High
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Lv5 6. 次の式の値を求めなさい。
x+y=4,xy=-3のとき, x2+xy+y2の値を求めなさい。
x2+xy+y==(x+y)2-xy+2)
npad
MOVIE
321050
=
42(-3)
= 192
Lv5 7. 2 けたの正の整数xがある。整数では土の位の数が
19
216
の位の数
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ありがとうございます！