Question 1

Herleid: $5x+7x$

Accepted Answer

$12x$

Question 2

Herleid: $-5x--x$

Accepted Answer

$-4x$

Question 3

Herleid: $5x+3y-2x-8y$

Accepted Answer

$3x-5y$

Question 4

Herleid: $3a-8+2a-1$

Accepted Answer

$5a-9$

Question 5

Herleid: $5\cdot 2p+8\cdot 3p$ (noteer ook de tussenstap)

Accepted Answer

$10p+24p=34p$

Question 6

Herleid:$3a\cdot 2b-5a\cdot 7b$ (noteer ook de tussenstap)

Accepted Answer

$6ab-35ab=-29ab$

Question 7

Werk de haakjes weg: $5(a+3b)$

Accepted Answer

$5a+15b$

Question 8

Werk de haakjes weg: $-7(a-2)$

Accepted Answer

$-7a+14$

Question 9

Herleid: $4(a-3b)+8a$ (noteer ook de tussenstap)

Accepted Answer

$4a-12b+8a=12a-12b$

Question 10

Herleid: $2p-(p-1)$

Accepted Answer

$2p-p+1=p+1$

Answer

$2p-p-1=p-1$

Answer

$-2p^2-2p$

Answer

$2p^2+2p$

Question 11

Bereken $-2^5$

Accepted Answer

$-32$

Answer

$-64$

Answer

$-10$

Answer

$32$

Question 12

$(5-8)^3+2^5=$

Accepted Answer

$(-3)^3+2^5=-27+32=5$

Answer

Geen van de andere antwoorden klopt

Answer

$-3^3+2^5=-27+32=5$

Answer

$(-3)^3+2^5=27+32=59$

Question 13

$8.370.000.000.000 $ wetenschappelijk geschreven is

Accepted Answer

$8,37 	imes 10^{12}$

Answer

$0,837 	imes 10^{13}$

Answer

$8,37 	imes 10^{10}$

Answer

$837 	imes 10^{10}$

Question 14

Herleid: $a^6 \cdot a^4$

Accepted Answer

$a^{10}$

Answer

$a^{24}$

Answer

$2a^{10}$

Answer

$2a^{24}$

Question 15

Herleid: $b^5 \cdot b \cdot  b^2$

Accepted Answer

$b^8$

Question 16

Herleid: $5x^3 \cdot 2y^4 \cdot 3x^5$

Accepted Answer

$math://30x^8 y^4$

Question 17

Herleid: $5a^4+3a^4$

Accepted Answer

$8a^4$

Question 18

Herleid: $5a^4 \cdot 3a^4$

Accepted Answer

$15a^8$

Question 19

Herleid: $-5a^6+3a^7$

Accepted Answer

$-5a^6+3a^7$

Question 20

Herleid: $-x^3+5x^6+x^3$

Accepted Answer

$5x^6$

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