Sagot :
Answer:
f(2x+5)=12x²+50x+2
Step-by-step explanation:
> f(2x+5)=3(2x+5)²-5(2x+5)+2
> f(2x+5)=3(4x²+20x+25)-10x-25+2
> f(2x+5)=12x²+60x+25-10x-23
> f(2x+5)=12x²+50x+2
Answer:
f(2x+5)=12x²+50x+2
Step-by-step explanation:
> f(2x+5)=3(2x+5)²-5(2x+5)+2
> f(2x+5)=3(4x²+20x+25)-10x-25+2
> f(2x+5)=12x²+60x+25-10x-23
> f(2x+5)=12x²+50x+2