Question

Oblicz:
a) 3(2a+b)² =
b) 2(a-2b)²=


⅓ + ⅗ : ⅞ =
⅗ +√1⁹/¹⁶ =

Answer 1

A)
3 (4akwadrat+4ab+bkwadrat) = 12a kwadrat +12ab+3bkwadrat
b)
2(akwadrat-4ab+4bkwadrat) = 2akwadrat-8ab+8bkwadrat
1/3+ 3/5*8/7 = 1/3 + 24/35 = 35/105 + 72/105 = 107/105

3/5+1 do potęgi 9/32= 3/5

Answer 2

A) 3(2a+b)² =3(4a do kwadratu + 4ab+b do kwadratu)=
=12a do kwadratu + 12ab + 3b do kwadratu

b) 2(a-2b)²=2(a do kwadratu - 4ab + b do kwadratu)=
=2a do kwadratu - 8ab + 2b do kwadratu

⅓ + ⅗ : ⅞ =1/3 + 3/5 * 8/7=1/3 + 24/35=35/105 + 72/105=107/105

⅗ +√1⁹/¹⁶ =3/5 + √25/16=3/5 + 5/4= 12/20 + 25/20=37/20
albo (bo nie wiem czy tam są ułamki czy potęgi)

⅗ +√1⁹/¹⁶=3/5 + 1=3/5 + 5/5=8/3