Question 1

Herleid: $2a\cdot5a+6a\cdot -a$

Accepted Answer

$4a^2$

Question 2

Herleid: $5x-(5x+6)$

Accepted Answer

$-6$

Question 3

Herleid de oppervlakte van de figuur

Accepted Answer

$6a^2-3a$

Question 4

Herleid: $(x+3y)^2$

Accepted Answer

$x^2+6xy+9y^2$

Question 5

Herleid: $(2p-5q)(2p+5q)$

Accepted Answer

$4p^2-25q^2$

Question 6

Herleid:$\dfrac{3x}{5y}+\dfrac{y}{2x}$

Accepted Answer

$\frac{6x^2+5y^2}{10xy}$

Question 7

Herleid:$\dfrac{5-x}{x} \cdot \dfrac{x+3}{5}$

Accepted Answer

$\frac{-x^2+2x+15}{5x}$

Answer

$\frac{25-5x}{x^2+3x}$

Answer

$\frac{-x+2}{5}$

Answer

$\frac{x^2-2x+25}{5x}$

Question 8

Noteer 0,000 000 000 15 wetenschappelijk

Accepted Answer

$1,5 \cdot 10^{-10}$

Question 9

Noteer 7 500 000 wetenschappelijk

Accepted Answer

$7,5 \cdot 10^6$

Question 10

Herleid: $5a^3b^2 \cdot 3ab^5$

Accepted Answer

$15a^4b^7$

Question 11

Herleid:$(5a^8)^2+9(a^4)^4$

Accepted Answer

$34a^{16}$

Question 12

Herleid: $-8a^3 \cdot 2b^4-(2a^3-4b^4)^2$

Accepted Answer

$-4a^6-16b^8$

Question 13

Herleid: $\dfrac{(x^4y^2z)^5 \cdot 3x^4y^{38}z^3-(-x^3y^6z)^8}{(-3x^2y^6z^2)^3+25(xy^3z)^6}$

Accepted Answer

$-x^{18}y^{30}z^2$

Question 14

Schrijf $81^3$ als macht van 9

Accepted Answer

$9^6$

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