Question

Calculati:
a)1/2 - 3 * 1/6 + 1/5 - 2=
b)3-6 * (-1)² +4-5=
c)(3-2x)²=
d)(4x+1)²=
e)(6-2x)³=

Answer 1

a)1/2-1/2+1/5-2=3 1/5
b)3-1+4-5=1
c)9-12x+4x la patrat
d)8x la patrat +6x+1
e)36-24+4x la patrat

Answer 2

a)1/2 - 3 * 1/6 + 1/5 - 2=
=1/2-1/2+1/5-2=
=(1-10)/5=9/5=1,8

b) 3-6 * (-1)² +4-5=
=3-6-1=-4

c)(3-2x)²= 9-12x+4x²
d)(4x+1)²=16x²+8x+1
e)(6-2x)³= 216-3*36*2x+3*6*4x²-8x³=216-216x+72x²-8x³