Question

zad 1 str 79 kw- do kwadratu a) 3x(x-7)= b) a kw (a+2b-1)= c) -3xy(x+y-3)= d) 5x kw (x do szescianu +3x -1)= e) -2 do piergwiazdka 2 (x do szescianu +piergwiaztek z 2x-2)= f) 2 2/3x (6x kw -9x+1/8)=

Answer 1

a) 3x(x-7)= 3-21x
b) (a+2b-1)=+2b-

c) -3xy(x+y-3)=-3y-3x+6xy
d) 5(+3x-1)=5+15-5

e) (+\sqrt{2x-2})=\sqrt{-2}+\sqrt{-2*2x-2}=\sqrt{-2}-2\sqrt{2x}

f)2\frac{2}{3}x(6{tex]x^{2}[/tex]-9x+\frac{1}{8}=