Va rog ajutatima
Ofer coroana +35 de puncte si va rog ajutatima repede
1.Calculati:
a) 1 supra 6 y+1 supra 4 y
b) - 2 supra7 x+3 supra 7 x
c) -3 supra 8 x - 11 supra 4 x
d) 3 \sqrt2 a + 5 \sqrt2a
e)5 5 \sqrt3a -2 \sqrt3a
f) -8-8 \sqrt5c+5 \sqrt5c

g) \sqrt18 a^2+ \sqrt8 a^{2}

h) ( \sqrt3- \sqrt2)xy+(2- \sqrt3) xy +(3+ \sqrt2)xy.

2.Reduceti termenii asemenea
a)-3x-2y+7x-3y
b)5xy+6 x^{2}
y-4x^{2}
y-6xy
c)7+2 x^{2}
-5+8 x^{2} -2
d)2,(3) x^{2} -3,(2) y^{2} +4,(1) y^{2} -4,(5) x^{2}
e)3,25xy+5,5x^{2} -2,7xy-6,7x^{2}
f) \frac{1}{6} x^{2} y+ \frac{1}{4} x y^{2}- \frac{1}{3} x^{2} y- \frac{1}{2} x y^{2}
g) 3 \sqrt{2} x^{2} -5 \sqrt{3} x+2 \sqrt{6} -2 \sqrt{2 }x^{2} +7 \sqrt{3}x-2 \sqrt{6}
h) x^{2} (2 \sqrt{3} +5)-x(3 \sqrt{2} -1)+5 \sqrt{2} - x^{2} (2 \sqrt{3} -3)+x(2 \sqrt{2} +3)-5 \sqrt{2}
3.Reduceti termenii asemenea si scrieti in ordine descrescatoare a puterilor lui x
a)9 x^{2} -3 x^{3} +4x-7 x^{2} +5 x^{3} -8x
Mersi!