Prosze o pomoc!!! :))))
a) (2x-3)do 2
b) (x+1) do 2
c) (x-5)(x+5)=
d) (x+2) do 3
e) (x-5) do 3
f) (x-2)(x do 2 +2x+4)
g) (x+3)(x do 2 -3x+9)=0
h) 2(x+3) do 2 -4(2x-6)(2x+6)+(4x-1) do 2
i) 4(x-1) do 3 -2(x+5)(x do 2 -5x+25)
tylko prosze zeby dokladnie wszystko bylo rozpisane co sie skad wzieło:) dam najjj:)
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a) (2x-3)^2= 4x^2-6x+9
b)(x+1)^2= x^2+x+1
c) (x-5)(x+5)= x^2+5x-5x-25= x^2-25
d) (x+2)^3= x^3+3x^2*2+3x*4+8=x^3+6x^2+12x+8
e) (x-5)^3=x^3-3x^2*5+3x*25-125=x^3-15x^2+75x-125
f) (x-2)(x^2+2x+4)= x^3-2x^2+4x-2x^2+4x-8= x^3-4x^2+8x-8
g) (x+3)(x^2-3x+9)=0
x^3-3x^2+9x+3x^2-9x+27=0
x^3+27=0
x^3= -27
x= -3
h) 2(x+3)^2-4(2x-6)+(4x-1)^2=
2(x^2+6x+9)-4(4x^2-36)+(16x^2-4x+1)=
2x^2+16x+18-16x^2+144+16x^2-4x+1=
2x^2+12x+163
i) 4(x-1)^3-2(x+5)(x do 2 -5x+25)=
4(x^3-3x^2+3x-1)-(4x^2+10)(x^2-5x+25)=
4x^3-12x^2+12x-4-(4x^4-20x^3+100x^2+10x^2-50x+250)=
4x^3-12x^2+12x-4+4x^4+20x^3-100x^2-10x^2+50x-250= 4x^4+24x^3-122x^2+62x-254