Question

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國二上數學，求解，全部，感激不盡

10
層掃描 數學日
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0
15) ( x - 2)2 + 4(x - 2) + 3 =
(16) (2x + 1) - 15(2x + 1) + 56 =
(17) ( 3x + 5)2 - 2(3x + 5 ) - 8 =
*(183( 3x + 2) - 5( 3x + 2)(x - 4) + 2(x - 4) =
(19 ( x + 1)(x - 2) - 4 =
(20) x( 3x + 8 ) - 3 =
(214x4 - 65x2 + 16 =
(222(x - 2y) - x + 2y - 15 =
(23 (x2 - 6x + 9 ) + ( xy - 3y + 2x - 6 ) =
*(24) ( x + 1)(x + 2)(x+3)(x + 4) - 360 =
*(25)(x + 2)(x+3)(x +8)(x + 12)- 4x2 =
*2設z - 50 +4=(x+a)(x + b), Ha>b,2a+b=
SIA
*3. 若x、y都是正整數,且3c + 10cy - 8y的值為19,則c = _y =
1998 +3 x 19982 + 3996
*4計算
1998°+1998
*5. 若為正整數,且12v2-77℃ - 20為一個質數,則:
(1)x =
(2)此數12c - 77x-20 為
6. 若+ xy-6y+ 6 + 33y+尼可分解為兩個x、y的一次因式之積,則
k =
若4.
(1)
(2)
-
=
(1)
=

Answer 1

真真

15

Answer 2

尋夢的魚

其他的等一下