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化简:(1)x2−5x+6x2+5x+4×2x2+3x+1x2−4x+3÷2x2−3x−2x2−16(2)239x+6xx4-2x1x.
题目详情
化简:
(1)
×
÷
(2)
+6x
-2x
.
(1)
x2−5x+6 |
x2+5x+4 |
2x2+3x+1 |
x2−4x+3 |
2x2−3x−2 |
x2−16 |
(2)
2 |
3 |
9x |
|
|
▼优质解答
答案和解析
(1)原式=
•
•
=
;
(2)原式=2
+3x
-2
=3x
.
(x−2)(x−3) |
(x+1)(x+4) |
(2x+1)(x+1) |
(x−1)(x−3) |
(x+4)(x−4) |
(2x+1)(x−2) |
=
(2x+1)(x−4) |
(x−1)(2x+1) |
(2)原式=2
x |
x |
x |
=3x
x |
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