Question

1) (2x+3y) do potegi 2 .

2) (6x-2xy) do potegi 2 .

3)(12x+11y) do potegi 2 .

4) (a+c) do potegi 2 .

5) (2a+3d) do potegi 2 .

6) (1.3a ( w ulamku ) + 1.6d ( w ulamku ) ) do potegi 2 .

7) (2a+3c) (2a-3c)

8) (0,1m - 0,2n ) do potegi 2 .

9) (1 i 1.2a ( w ulamku ) + 2 i 3.4d ( w ulamku ) do potegi 2 .

10) (z+3xy) do potegi 2 .

11) (lm + ko) do potegi 2 .

Daje naj :)

Answer 1

A)(2x+3y)²=2x²+3y²=4x+9y

b)(6x-2xy)²=6x²-2xy²=36x-4xy

c)(12x+11y)²=12x²+11y²=144x+121y

d)(a+c)²=a²+c²

e)(2a+3d)²=2a²+3d²=4a+9d

f)(⅓a+⅙d)²=(⅓a)²+(⅙d)²=¹/₉a+¹/₃₆d

g)(2a+3c)(2a-3c)=2a²-3c²=4a+9c

h)(0,1m-0,2n)²=0,1m²-0,2n²=0,01m-0,04n

i)(1½a+2¾d)²=(³/₂a)²+(¹¹/₄d)²=⁹/₄a+¹²¹/₁₆d=2¼a+7⁹/₁₆d

j)(z+3xy)²=z²+3xy²=z²+9xy

k)(lm+ko)²=lm²+ko²

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