摘要:8.计算题 +27= = = = (5)-8+│-5│= =
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计算题
(1)(
+
)(
-
)-(
)0;
(2)
;
(3)5x2=4-2x(配方法);
(4)(x-2)(3x-5)=1(公式法);
(5)(4x-1)(5x+7)=0;
(;6)x2+12x+27=0.
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(1)(
| 2 |
| 6 |
| 2 |
| 6 |
| 1 | ||
|
(2)
|
(3)5x2=4-2x(配方法);
(4)(x-2)(3x-5)=1(公式法);
(5)(4x-1)(5x+7)=0;
(;6)x2+12x+27=0.
计算题:
(1)-4+
+3.2-16-
+16.8;
(2)(-121)÷
×(-
)÷(-16);
(3)(1
+2
-3
)×(-24);
(4)-32-[-5-0.2÷
×(-2)2];
(5)-10-9÷(-2
)-5×(-
)÷(-
)2;
(6)1-2+3-4+5-6+…+999-1000.
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(1)-4+
| 2 |
| 7 |
| 5 |
| 7 |
(2)(-121)÷
| 11 |
| 4 |
| 4 |
| 11 |
(3)(1
| 3 |
| 8 |
| 1 |
| 3 |
| 3 |
| 4 |
(4)-32-[-5-0.2÷
| 4 |
| 5 |
(5)-10-9÷(-2
| 1 |
| 4 |
| 1 |
| 5 |
| 1 |
| 2 |
(6)1-2+3-4+5-6+…+999-1000.