Free Printable Množenje polinoma

1.

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

a)

$-5x^2-12x$

b)

$-6x^3+12x^2$

c)

$-6x^3-12x^2$

d)

$-6x^2-12x$

2.

$\left(3а-4а^3\right)\left(-5+2а^2\right)=$

a)

$-15a-8a^5$

b)

$-8a^5+26a^3-15a$

c)

$-15a-14a^3+8a^5$

d)

$8a^5-14a^3-15a$

3.

$\left(5a-2c\right)^2=$

a)

$5a^2-2c^2$

b)

$25a^2-4c^2$

c)

$25a^2-20ac+4c^2$

d)

$25a^2-10ac+4c^2$

4.

Uprosti izraz $\left(2x-5y\right)^2-2\left(4x-3y\right)\left(4x+3y\right)$ :

a)

$-28x^2-7y^2$

b)

$-28x^2+7y^2$

c)

$-28x^2-20xy+43y^2$

d)

$-28x^2-20xy-43y^2$

5.

Proizvod monoma $\frac{2}{3}a^2b^2,\ -1\frac{1}{2}a^2b\ \ i\ \ 2,5ab^3c$ je

a)

$-2,5a^5b^6c$

b)

$-2,5a^4b^5c$

c)

$6a^3b^2$

d)

$6a^2b^3$

6.

Da li je tačno (3x+4) $\cdot$ ( 3x+4)= $9x^2+24x\ +16$

a)

Tačno

b)

Netačno

7.

Označi tačne jednakosti:

a)

$2x\ +3x=5x$

b)

$2x\cdot3x\ =6x$

c)

$2x\cdot3x=6x^2$

d)

$3x\cdot12x=36x$

8.

Stepen polinoma $3x^{2\ }+4x^{5\ }-4x$ je

a)

2

b)

5

c)

7

d)

6

9.

Proizvod polinoma $5x+6\ \ \ i\ \ \ x-3$ iznosi

a)

$6x+3$

b)

$5x^{2\ }-18$

c)

$5x^2-9x-18$

d)

$5x^{2\ }+9x+18$

10.

$5z\cdot3z=15z$

a)

Tačno.

b)

Netačno.

11.

Kvadrat binoma $\left(x\ -7\right)^2\ je$

a)

$x^2-49$

b)

$x^2-7x\ -49$

c)

$x^2-14x+49$

d)

$x^2+14x+49$

12.

Koja formula je tačna ?

a)

$\left(a-b\right)^2=a^2+2ab-b^2$

b)

$\left(a-b\right)^2=\ a^2-ab+b^2$

c)

$\left(a-b\right)^2\ =\ a^2-\ b^2$

d)

$\left(a-b\right)^2=a^2-2ab+b^2$

13.

Rešenje jednačine $4x^2-\left(2x+5\right)^2=-15$ je:

a)

$x=1$

b)

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

c)

$x=-\frac{1}{2}$

d)

$x=-2$

e)

$x=2$

14.

Koliko je $\left(2a-3b\right)\ \left(2a-3b\right)\$ ?

a)

$4a^2-9b^2$

b)

$4a^2-6ab+9b^2$

c)

$4a^2-12ab+9b^2$

d)

$4a^2+9b^2$

15.

$\left(\frac{2}{3}x\ +a\right)^2$

a)

$\frac{4}{3}x^2+\frac{4}{3}xa+a^2$

b)

$\frac{4}{9}x+\frac{4}{3}xa+a^2$

c)

$\frac{4}{9}x^2+\frac{4}{3}x+a^2$

d)

$\frac{4}{9}x^2+\frac{4}{3}xa+a^2$

16.

Napiši u obliku kvadrata binoma: $16x^2+24xy+9y^2$

a)

$\left(4+9y\right)^2$

b)

$\left(2x+3\right)^2$

c)

$\left(4x+3y\right)^2$

d)

$\left(8x+3y\right)^2$

17.

Napiši u obliku kvadrata binoma: $25a^2+10a+1$

a)

$\left(5+2a\right)^2$

b)

$\left(a+1\right)^2$

c)

$\left(5a+1\right)^2$

d)

$\left(5a+2\right)^2$

18.

Označi sve izraze koji su jednaki $\left(2x+y\right)^2$ :

a)

$4x^2+y^2$

b)

$\left(2x+y\right)\ \left(2x+y\right)$

c)

$\left(2x+y\right)\ \left(2x-y\right)$

d)

$4x^2+4xy+y^2$

e)

$\left(-2x-y\right)^2$

19.

Označi sve tačne formule:

a)

$4x^2+2xy+y^2=\left(2x+y\right)^2$

b)

$4x^2+4xy+y^2=\left(2x+y\right)^2$

c)

$4x^2+4xy-y^2=\left(2x-y\right)^2$

d)

$4x^2-4xy+y^2=\left(2x-y\right)^2$

e)

$4x^2-y^2=\left(2x-y\right)^2$

20.

$\left(3x-2y\right)^2=9y^2-12xy-4x^2$

a)

TAČNO

b)

NETAČNO

Množenje polinoma

Total questions: 20

Worksheet time: 14mins

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