Wielomiany - wyznacz a,b,c.

[gusia111]

Wielomiany W(x) i Q(x) są równe. Wyznacz a,b,c jeżeli:
\(\displaystyle{ W(x)=13x^{3}-(4a+3)x^{2}+7x+2c}\)
\(\displaystyle{ Q(x)=13x^{3}-4x^{2}-(b+1)x+4}\)

[barakuda]

\(\displaystyle{ -(4a+3) = -4}\)

\(\displaystyle{ -(b+1)=7}\)

\(\displaystyle{ 2c=4}\)

[gusia111]

Dzięki wielkie : )

[barakuda]

\(\displaystyle{ -(4a+3)=-4}\)

\(\displaystyle{ -4a-3=-4}\)

\(\displaystyle{ -4a = -4+3}\)

\(\displaystyle{ -4a = -1}\)

\(\displaystyle{ a= \frac{1}{4}}\)


\(\displaystyle{ -(b+1)=7}\)

\(\displaystyle{ -b-1=7}\)

\(\displaystyle{ -b = 7+1 = 8}\)

\(\displaystyle{ b=-8}\)


\(\displaystyle{ 2c=4}\)

\(\displaystyle{ c= \frac{4}{2} = 2}\)