Learn how to solve problems step by step online. 4b^2-6b+9. Applicare la formula: ax^2+bx+c=a\left(x^2+\frac{b}{a}x+\frac{c}{a}\right), dove a=4, b=-6, c=9 e x=b. Applicare la formula: a\left(x^2+b+c\right)=a\left(x^2+b+c+\left(\frac{coef\left(b\right)}{2}\right)^2-\left(\frac{coef\left(b\right)}{2}\right)^2\right), dove a=4, b=-\frac{3}{2}b, c=\frac{9}{4} e x=b. Applicare la formula: a\left(x^2+b+c+f+g\right)=a\left(\left(x+\sqrt{f}sign\left(b\right)\right)^2+c+g\right), dove a=4, b=-\frac{3}{2}b, c=\frac{9}{4}, x^2+b=b^2-\frac{3}{2}b+\frac{9}{4}+\frac{9}{16}-\frac{9}{16}, f=\frac{9}{16}, g=-\frac{9}{16}, x=b e x^2=b^2. Applicare la formula: \frac{a}{b}c=\frac{ca}{b}, dove a=3, b=4, c=-1, a/b=\frac{3}{4} e ca/b=- \frac{3}{4}.

4b^2-6b+9