Mathematics
Senior High
数学
わかんないです！教えてください！
(8) 0<a<2のとき, Va²+ 10a +25-√a²-6a +9 を簡単にせよ。
^ [a+s)² - 4√ [a-3) ²
(9) 次の1次不等式, 連立不等式を解け
EV
ats-at3 -
(a+5)-(a-3) 20+8
zate
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