多項式加減法702

Authored by NGJH NANTOU

Mathematics

7th - 9th Grade

Used 9+ times

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20 questions

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MATCH QUESTION

1 min • 5 pts

同類項

$2x$

$-5$

$-3x^2$

$2x^2$

$-x^3$

$5x^3$

$2$

$3x$

MATCH QUESTION

1 min • 5 pts

同類項

$3x^3$

$\frac{1}{2}x^2$

$\frac{1}{2}x$

$3x$

$-x^2$

$6$

$0$

$-2x^3$

MULTIPLE CHOICE QUESTION

1 min • 5 pts

化簡 $x^2-2x+1+3x^2+x=?$

$4x^2-x+1$

$4x^2+x+1$

$5x^2$

$3x^2+2x+1$

MULTIPLE CHOICE QUESTION

1 min • 5 pts

化簡 $-5x-2+3x^2+x+2=?$

$3x^2-4x$

$3x^2+4x+4$

$3x^2-4x-4$

$-2x$

MULTIPLE CHOICE QUESTION

1 min • 5 pts

化簡 $\left(-2x^2-4x\right)+\left(-3+5x+2x^2\right)=?$

$-4x^2+x-3$

$x-3$

$4x^2+9x-3$

$9x-3$

MULTIPLE CHOICE QUESTION

1 min • 5 pts

化簡 $\left(-2x^2-4x\right)-\left(-3+5x+2x^2\right)=?$

$-4x^2+x-3$

$-4x^2-9x+3$

$4x^2+9x-3$

$9x-3$

MULTIPLE CHOICE QUESTION

1 min • 5 pts

化簡 $x^3+2x-1-2x^2-x-1=?$

$x^2-2x^2-2x-2$

$x^3-2x^2+x-2$

$-x^3+x-2$

$-2x^3$

MULTIPLE CHOICE QUESTION

1 min • 5 pts

化簡 $\left(2x^2-4x+1\right)+\left(-3x^2+2x+5\right)=?$

$-x^2-2x+6$

$x^2-2x+6$

$3x^2$

$x^2-6x+6$

MULTIPLE CHOICE QUESTION

1 min • 5 pts

化簡 $\left(2x^2-4x+1\right)-\left(-3x^2+2x+5\right)=?$

$5x^2-6x-4$

$5x^2-2x+6$

$5x^2-4x-4$

$5x^2-6x+4$

10.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

已知 $\left(a-1\right)x^3+2x^2-1$ 為二次多項式
，則 $a=?$

$1$

$-1$

$2$

$-2$

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多項式加減法702

同類項

同類項

化簡 x2−2x+1+3x2+x=?x^2-2x+1+3x^2+x=?x2−2x+1+3x2+x=?

化簡 −5x−2+3x2+x+2=?-5x-2+3x^2+x+2=?−5x−2+3x2+x+2=?

化簡 (−2x2−4x)+(−3+5x+2x2)=?\left(-2x^2-4x\right)+\left(-3+5x+2x^2\right)=?(−2x2−4x)+(−3+5x+2x2)=?

化簡 (−2x2−4x)−(−3+5x+2x2)=?\left(-2x^2-4x\right)-\left(-3+5x+2x^2\right)=?(−2x2−4x)−(−3+5x+2x2)=?

化簡 x3+2x−1−2x2−x−1=?x^3+2x-1-2x^2-x-1=?x3+2x−1−2x2−x−1=?

化簡 (2x2−4x+1)+(−3x2+2x+5)=?\left(2x^2-4x+1\right)+\left(-3x^2+2x+5\right)=?(2x2−4x+1)+(−3x2+2x+5)=?

化簡 (2x2−4x+1)−(−3x2+2x+5)=?\left(2x^2-4x+1\right)-\left(-3x^2+2x+5\right)=?(2x2−4x+1)−(−3x2+2x+5)=?

已知 (a−1)x3+2x2−1\left(a-1\right)x^3+2x^2-1(a−1)x3+2x2−1 為二次多項式，則 a=?a=?a=?

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化簡 $x^2-2x+1+3x^2+x=?$

化簡 $-5x-2+3x^2+x+2=?$

化簡 $\left(-2x^2-4x\right)+\left(-3+5x+2x^2\right)=?$

化簡 $\left(-2x^2-4x\right)-\left(-3+5x+2x^2\right)=?$

化簡 $x^3+2x-1-2x^2-x-1=?$

化簡 $\left(2x^2-4x+1\right)+\left(-3x^2+2x+5\right)=?$

化簡 $\left(2x^2-4x+1\right)-\left(-3x^2+2x+5\right)=?$

已知 $\left(a-1\right)x^3+2x^2-1$ 為二次多項式
，則 $a=?$