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111.5)-(-8)=-5+8)
= 3
2. 56x3y4 = (-8x²-44) = -7x
3(x-3)(x-1)=x-2c-9x+3
= 3x²+10x+3
4 Zatzb
69-9
-
6
6
-49-7
6
=-8-17
=
14
6
--
3
5
x = +3±√√ +3²+4x1x-7
Z
x = +3 ± √9+28
6 9πLX 45
6
360
3±137
x=
=
πC
7 y=ax+4
3=2a +4
P
-za = 1
9 = = =1/15
a
2
y= -2x+4
11213141516、アエ
P