Question

Ex 5 si 6 va rooog dau coroana!!

Answer 1

a) (-2x)³=-8x³
b) = ( 9/4)x²y²
c) [(-1/2)×x²×y]²=1/4($x^{4} y^{2}$)
d)
$(- \sqrt{3} x^{2} )^{3} =-3 \sqrt{3} \cdot x^{6}$
e)
$(-5a^{2}b)^{4} =5^{4}a^{8}b^{4}$
g)
$(-2x)^{4}:(-4x^{2})= 2^{4} \cdot x^{4}:(-2^{2}\cdot x^{2} )=-8 x^{2}$
h)
$-6^{3}x^{6}y^{6}:3^{2}x^{2}y^{2} =216 x^{6}y^{6}:9x^{2}y^{2}=24 x^{2} y^{2}$

6)
b)$[(-2xy) ^{2}] ^{3}:(-4 x^{2} )^{2} = \frac{4 ^{3}x^{6}y^{6}}{4^{2}x^{4}}=4 x^{2} y^{6}$